describe the relationship between an element's placement in the periodic table and the number of electrons in its outermost energy level

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  1. chemistry

    Suppose you take a trip to a distant universe and find that the periodic table there is derived from an arrangement of quantum numbers different from the one on Earth. The rules in that universe are: 1. principal quantum number n = 1, 2, . . . (as on

  2. Chemestry

    A new element has been discovered and you are on the task force to determine where this new element will be placed on the periodic table with its known properties. Using the model of the periodic table and its periodic patterns, analyze the data of the

  3. Chemistry

    Which element would have a full outer shell of electrons if it gained three electrons? boron lithium nitrogen argon THIS ONE Which statement best explains why hydrogen's atomic number is equal to its mass? hydrogen is in the first row and the first column

  4. Science

    Unit 3 Periodic Table Remediation Group 2 elements like Be, Mg, ... are called alkaline earth metals. They exhibit similar chemical properties. Which of the following characteristics is responsible for the common chemical behavior of elements in any group

  5. chemistry

    elements below, indicate how each elements’ valence electrons act in a chemical reaction. Insert an L if an element loses electrons, a G if the element gains electrons, an E if the element can either lose or gain electrons, and a U if the element is

  6. Science

    The Periodic Table 1) What conclusions can be drawn about the relationship between the arrangement of elements on the periodic table and the patterns observed in their properties? :Properties of elements are related to atomic numbers.*** :Properties of

  7. Chemistry

    1. An atom has 3 protons, 4 neutrons, and 3 electrons. Use the periodic table to determine which atom would have similar chemical properties to this atom. A)12 protons, 12 neutrons, and 12 electrons B)11 protons, 11 neutrons, and 11 electrons C)10 protons,

  8. science,

    1. How many periods are there in the periodic table? * 1 point 6 7 8 9 2. How many groups are there in the periodic table? * 1 point 15 16 17 18 3. State the number of valence electrons in an atom of Sulfur. * 1 point 2 4 6 8 4. State the number of valence

  9. Chem help

    Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an atom of this elelemt have?

  10. chemistry

    which element has 16 protons, 17 neutrons, and 16 electrons? Look on the periodic table. It is element number 16 since that is the number of protons and electrons. I know sulphur has 16 of each. However, it might be an isotope of sulphur to have 17

  11. Chemistry

    A neutral atom of an element has 2 electrons with n=1, 8 electrons with n=2, and 5 electrons with n=3. Write its electron configuration and find: A) atomic number B) total number of s electrons C) total number p electrons D) total number of protons

  12. chemistry

    using only the periodic table, write the expected ground-state electron configurations for: a. element number 116 b. an element with three unpaired 5d electrons c. the halogen with electrons in the 6p atomic orbitals

  13. chemistry

    in an element on the periodic table, which number tells you the how many electrons are in that element??

  14. Chemisrty

    Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an atom of this elelemt have?

  15. chemistry

    I wanted to check my True and False Chemistry HW. I am not 100% they are correct. 1.the number of neutrons in an atom is reffered to as its atomic number False 2.the periodic table is arranged by increasing atomic number True 3.atomic number is equal to

  16. Chemistry

    Ytterbium, atomic number, 70 is the first element in the periodic table to have the first four shells full. work out the number of electrons in the fourth shell/ level of ytterbium? Please show all working out with no abbreviations and please help

  17. Chem

    The numbers on the top of the coumns on the periodic table represent A The number of valence electrons that each of those elements in that column have. B The number of core electrons that each of those elements in that column have. C The number of orbital

  18. Chemisty

    Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p3. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an atom of this elelemt have? D.

  19. Science Elements

    The table above shows the number of protons in an atom of four different elements. According to the periodic table, which of these elements is a metal? * A.T B.Q C.X D.Z Element/ Number Of Protons T/ 7 Q/ 15 X/ 12 Z/ 17 (I couldn't get the table in so that

  20. 10th Grade Chem

    How do you determine if an element or compound is Aqueous, Solid, Liquid, or Gas just looking at a periodic table. Also, how do you determine if a compound or element is insoluble or soluble by looking at just the periodic table. What's the net ionic

  21. Chemistry

    Nickel (Ni) is an element found in Group 10 of the periodic table of elements (see periodic table at the top of this quiz). Based on its location in the periodic table, which of these is a property of nickel? A Low density B Strong semi conductor C Highly

  22. Biology

    These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of the atoms that make up

  23. Chemistry

    Name an element that has 5 electrons in the third energy level. How do i determine the third energy level Row three on the periodic table is third energy level If memory serves me will, it begins with sodium. Ok. iS Krypton the electron configuration that

  24. Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element? A. Increases B. Decreases C. Remains the same

  25. Science....HURRY! Please respond ASAP!!!!

    0=X=0 The model above shows how an unidentified element, X, forms covalent bonds with oxygen. In which group on the periodic table does Element X most likely belong? A. Group 6 B. Group 12 C. Group 14 D. Group 18 I think it is either C or D. So X must be a

  26. science

    Why do elements that are in the same group of the periodic table share similar properties? They all have the same atomic mass. They are all very reactive with other elements. They are all metals. They all have the same number of electrons in the outer

  27. Chemistry

    Which of the following are key parts of Dalton's Atomic Theory (Click the 4 that apply)? (1 point) All elements are composed of tiny indivisible particles called atoms*** Atoms of the same element are identical. The atoms of any one element are different

  28. Physical science CHECK my answers

    1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom*** c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point) a. Nucleus b. Neutron c. Proton d. Electron***** 3. Who provided the first evidence that

  29. Science

    1. Which of the following best describes an atom? A) protons and electrons grouped together in a random pattern B) protons and electrons grouped together in an alternating pattern C) a core of protons and neutrons surrounded by electrons* D) a core of

  30. Chemistry

    Write a brief passage describing a neutral atom of nitrogen-14 (N-14). Describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to

  31. Chemistry

    Ytterbium, atomic number 70, is the first element in the Periodic table to have the first four shells full. a) State the number of electrons in the fourth shell/ level of ytterbium (1) b)How many orbitals are there in the third shell of ytterbium? (1)

  32. Biology

    These are true and false questions and I want to be sure of my answers. Please someone check. Thanks: The eight-element periodicity found in the Periodic Table is related to the number of electrons in the outermost energy level of the atoms that make up

  33. Chem

    How do you figure out the Noble Gas Configuration? Also, why do you not put in the "p" level and when do you( if you even do) put it in? You need to be more specific about your question. Elements that lose electrons (Na, Ca, Al, etc) gain the noble gas

  34. Science

    Use your periodic table of elements. Take any element of your choosing (from period 4 or above) and answer the following questions: What is the element's name and symbol? Is it a metal, nonmetal, or metalloid? Which family does it belong to? How many

  35. science

    how can the periodic table help you determine the number of valence electrons?

  36. Elements

    how can someone find out which element is a more chemically active nonmetal from looking at the Periodic Table? What element is a black crystal that hs 4 electrons in its outermost energy level?

  37. Science -CHECK MY WORK-

    a.) How can you describe the location of vanadium (V, atomic number 23) on the periodic table? Choose all that apply. 1. period 5, group 4 2. period 4, group 5 3. lanthanum series 4. nonmetals 5. transition metals b.) What is true about the element calcium

  38. chem

    answer the following questions assuming that m (subscript s) could have three values rather than two and the rules for n, l and m (subscript l) are the normal ones. 1. how many electrons would an orbital be able to hold? 2. how many elements would the

  39. Science

    A hypothetical element has two main isotopes with mass numbers of 56 and 59. If 61.00% of the isotopes have a mass number of 56 amu, what atomic weight should be listed on the periodic table for this element?

  40. chemistry

    1.what is meant by atomic number of an element? 2.the mass number of an element is 18,it contains 7 electrons.what is the number of protons and neutrons in it?what is the atomic number of the element? 3.an element has an atomic number of 11 and its mass

  41. Chemistry-10th grade

    Hi! Good morning! I was suppose to turn in this test yesterday. Can You please help me with these last two essay questions. The first one I got the answer, just please tell me if it is correct and the second I don't know the answer. Please help ASAP! Thank

  42. Chemistry

    Ytterbium, atomic number 70, is the first element in the Periodic table to have the first four shells full. a) State the number of electrons in the fourth shell/ level of ytterbium (1) b)How many orbitals are there in the third shell of ytterbium? (1)

  43. Science

    Unit 3 Test Multiple Choice Please select the correct response for the following questions. 1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point)

  44. Chemistry

    I have to write a bunch of atomic symbol for these isotopes and I don't understand how to I do it. (a) atomic number=53, number of neutrons=79 I looked at the periodic table for 53 so the element is Iodine. So They gave the atomic number and I have the

  45. chemistry

    what is the difference between elements in a group and elements in a period on the periodic table Elements in the same group have similar chemical properties. Element in the same period have properties that change periodically across the table. Check out

  46. science

    what is neon on the Periodic Table Of Elements? Ne is a gas. Element #10 on the periodic table. For more information on Ne look at www.webelements.com

  47. science

    The following is a periodic table below All the letters are in squares The S = an empty square 13 Colums in total Questions: 1. What pair of elements is in the same period? D and R 2. Which pair of elemetns is in the same family? K and F 3. Which element

  48. Biology

    Element R and Element Q have the same number of valence electrons. These elements both have similar chemical behavior, but Element R has fewer energy levels than Element Q.

  49. chemisrty

    which element results if 2 protons and 2 neutrons are ejected from a radium nucleus with atomic num 88 and mass num 226 how do i go about this please can you help If you can add you can do these. 88Ra226 ==>2X4 + zzYww. Now make the numbers add. Protons

  50. science

    describe the relationship between an element's placement in the periodic table and the number of electrons in its outermost energy level

  51. Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element A. Increases B. Decreases C. Remains the same

  52. chemistry

    Can someone please help me with these? How many electrons would Nitrogen, Aluminum, and Bromine gain or lose? Look at the periodic table and find N, Al, and Br. You should find N in group VA (or 15 depending on the system being used), Al in IIIA (or 13),

  53. Chemistry

    For a Sc atom in ground electronic state: 1. how many electrons are there in 4s orbitals? 2. how many electrons are there in 3d orbitals? 3. how many electrons are there in 4p orbitals? 4. how many unpaired electrons are there? 5. to what block does Sc

  54. physical science

    state the importance of valence electrons in the organizatin of the periodic table Since this is not my area of expertise, I searched Google under the key words "'valence electrons' periodic table" to get these possible sources:

  55. Sci

    I am writing a peom on the element flourine and it should explain and the structure of the atoms that make up that element, explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally,

  56. Chemistry

    Use the periodic table and predict the number of electrons that will be lost or gained by the following elements as they change into simple ions. Write an equation using elemental symbols, ionic symbols, and electrons to represent each change. a) Ca b)

  57. Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element? A. Increases B. Decreases C. Remains the same

  58. science

    please help 1.What effect do isotopes of a given element have on the atomic mass calculated for that element? 2. Name two nucleons. 3. Distinguish between atomic number and mass number. 4. Distinguish between mass number and atomic mass. 5. How is the

  59. chemistry

    can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

  60. science

    how many protons does a calcium atom have. Do you have a periodic table? Do you know how to get the number of protons of an element from the periodic table?

  61. Final Exam- Honors Physical Science

    how can you determine the number of protons, electrons,neutrons, atomic number, and the atomic mass of an element using the periodic table? Atomic mass is given in the table, as well as the atomic number and atomic mass number. Atomic number is the number

  62. Chemistry

    Identify the element shown below. Group of answer choices Magnesium (Mg) Hydrogen (H) You cannot identify the element, there is not enough information. Helium (He) Calcium (Ca) Flag this Question Question 26.67 pts A student tests an unknown substance for

  63. chemistry

    1.) Which element has one of the highest electronegativities on the periodic table? 2.) Which element has one electron in a 3p orbital? 3.) Which element tends to gain one electron?

  64. science

    A scientisit performs tests on a sample of an element. The element is shiny solid that conducts electricity and heat. The scientist is able to bend and flatten the sample when pressure is applied to it. Based on this information, the element could NOT be a

  65. science

    1. When Mendeleyev arranged the elements into the periodic table, he found that elements with fell into groups on the table A. the same mass B. similar size C. Similar properties D. The same color 2. Every element has its own atomic number. The atomic

  66. cHEMISTRY

    wHAT IS THE SYMBOL FOR THE ION WITH 13 PROTONS AND TEN ELECTRONS? CAN U EXPLAIN HOW TO GET YOUR ANSWER, AND CAN YOU GIVE ME A WEBSITE THAT HELPS ME WITH CHEMISTRY 13 protons will be element with atomic number of 13. Look on the periodic table and see

  67. college Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element? A. Increases B. Decreases C. Remains the same

  68. Chemistry

    Usinf your periodic table, Indicate whether each other following substances could act as an oxidizing agent (OA), a reducing agent (RA) or both (OA/RA): (A.) Ba2+ (aq) So I think it should be reduction because it gained 2 electrons? (B.) Co2+ (aq) : RA

  69. Sci

    Does my poem below have these things "explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally, WHY it would interact with that other element" Here is the Poem Below: “What’s

  70. Sci Plzz See This Post

    Does my poem below have these things "explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally, WHY it would interact with that other element" Here is the Poem Below: “What’s

  71. chemistry

    suppose that an isotope of uninhexium Uuh under goes a succession of seven a -decay reactions what isotope would be the final product of these changes and show how u arrived at this answer and would the final product be a lanthanide,an actinide,atransition

  72. Science

    The periodic table is arranged according to several trends. Which of the following is true as you move from left to right along the periodic table: A the element's atomic mass decreases and the atomic number increases B the element's productivity increases

  73. Chemistry

    I have to make a game based on the periodic table Here are the standards we could put in the game: Students know how to relate the position of an element in the periodic table for it's atomic number and mass Students know how to use the periodic table to

  74. chemistry

    can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

  75. chemistry

    can u help me on these questions? 1) describe the development of the modern periodic table. include contributions made by Lavoiser, Newlands, Mendeleev, and Mosely. 2) describe the general characteristics of metals, nonmetals, and metalloids. 3) identify

  76. chemistry

    give the formular of the highest hydride and highest flouride of ununhexium and explain how you arrived at your answer You can find Uuh in the periodic table. Placement of Uuh in the periodic table will tell you that the chemistry will be similar to the

  77. Chemistry

    Basically as you know the electrons circle the nucleus well in that first ring how many elcetrons are there, in the second and so forth Here are the "ring" number, when filled: 2n^2 where n is the ring number: example n= 3, the third" ring" 2*3^2= 18 No, I

  78. binary compounds!

    based on only differences in electro negativity, what compounds would be the most strongly ionic of all binary compounds? The compound consisting of the most electropositive element with the most electronegative. The most electropositive element is at the

  79. chemistry

    Why do you think that the ionization energy tends to decrease within a family of the periodic table? Since ionization energy tends to increase within a period of the periodic table because they are in higher energy orbitals so it'll take more energy to

  80. Chemistry

    My question is what is the molar mass of 1.00 mol of Li? Can you explain in detail and I have another question: What is the molar mass od 1.00 mol of Ag but if you help me with the first question, then can you just tell me to the other by myself so I can

  81. Chemistry

    When looking at the Periodic Table, the oxidation state of hydrogen is +1; however my teacher told me that the net charge of hydrogen is 0. I do not understand why this is? Also, How may one calculate the charge of an element if only given the number of

  82. Science

    The placement of metal and non-metal elements in the periodic table makes it possible to predict the formation of compounds. Which of the following chemical formulas indicates the formation of an ionic compound? a. KI b. ICI c. SO3 (the three is small) d.

  83. Chemistry

    Rank from most to least active based on placement on periodic table : Magnesium, potassium, sodium.

  84. science

    6. The table above shows the number of protons in an atom of four different elements. According to the periodic table, which of these elements is a metal? * A.T B.Q C.X D.Z Element Number Of Protons T 7 Q 15 X 12 Z 17

  85. science

    what can an element's osition in the periodic tabletell you about it's relationship to other elements in the periodic table?

  86. SCI !!!!

    I am writing a peom on the element flourine and it should explain and the structure of the atoms that make up that element, explain why it is where it is on the periodic table, what element(s) it might combine with to make a compound/molecule, and finally,

  87. Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element A. Increases B. Decreases C. Remains the same

  88. Phyiscal science test monday

    The following is a periodic table below All the letters are in squares The S = an empty square 13 Colums in total Questions: 1. Which pair of eleemtns has the same number of valence electrons? clueless 2. What pair of elements is in the same period? D and

  89. Chemistry

    I am trying to complete one of those charts, where you find an element, its proton number, its electron number, it's charge, and whether it's an ion or an atom, based on looking at the Periodic Table. I get how it works, sort of, like for Lithium, you look

  90. Science-Periodic Table

    describe how to verify the # of electrons in the ion of an element. Can you please correct some of my wordings in here. I don't really get how to explain it. You look at the atomic number which is the same number of protons as electrons; but if there is a

  91. Chem

    The atomic numbers and masses must added up on both sides of the equation just as we must have the same number of atoms on each side of an equation when it is balanced. Ejection of a "thing" with 2 protons and 2 nuetrons is a He nucleus which is an alpha

  92. chemistry

    For the elements in row 2 of the PT discover the relationship between ionization and the family number of the element Element. Family. Ionization Ener Lithium. 1 13.6 beryllium. 2. 9.3 boron. 13. 8.3 carbon. 1 4. 11.27 nitrogen. 15 14.53 oxygen. 16. 13.62

  93. Che

    Ytterbium, atomic number 70, is the first element in the Periodic table to have the first four shells full. a) State the number of electrons in the fourth shell/ level of ytterbium (1) b)How many orbitals are there in the third shell of ytterbium? (1)

  94. Science

    Look at the table of radioactive isotypes below. Isotype Type of Decay Uranium-238 Alpha Nickel-63 Beta Iodine-131 Beta Radium-226 Alpha With the help of a periodic table, predict the element that forms in each case. I'm confused by this. Am I suppose to

  95. Physical Science

    Based on a data table of their preliminary observations, which is shown below, complete the final column entitled: “Number of Valence Electrons” and then answer the questions that follow. Element Name Symbol Group Number Alkalininium A 1 Earthium E 2

  96. Chemistry

    If I were to explain to someone about how to find a charge of an element, would anyone agree with this: The charge of an element is determined by the gain or lose of electrons. Depending on how close they are to the left/right side of the periodic table

  97. chemistry

    who is the father of the modern day periodic based on x-ray differaction experiments Father? Moseley, xrayed about three dozen elements, and his straight line plots of two bands of xrays uncovered the relationship of atomic number. I am not certain he

  98. science

    A hypothetical element has two main isotopes with mass numbers of 80 and 83. If 68.00% of the isotopes have a mass number of 80 amu, what atomic weight should be listed on the periodic table for this element?

  99. Science

    Which best describes the similarities among elements included in the same column of the periodic table? A. They have the same state at room temperature. B. They have the same number of protons. C. They have the same number of electrons. D. They have

  100. honors chemistry

    Compare the present Periodic Table with Mendeleevs original Periodic Table in terms of how it is organized, number of elements, what it looks like, ease of understanding, and information given.

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