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)
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Question 26.67 pts
A student tests an unknown substance for the following properties and finds the results listed in the table below:
Given this information, which of the following is the most reasonable conclusion for the student to reach?
Group of answer choices
The substance is a metalloid.
The substance is a metal.
The substance is a noble gas.
The substance is a non-metal.
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Question 36.67 pts
Which of the statements accurately compares the elements shown in the table below?
Group of answer choices
Fluorine is the most reactive because it has 7 valence electrons.
Silicon is the most reactive because it is a metalloid.
Gallium is the most reactive because it has the most neutrons.
Boron is the most reactive because Boron has the least amount of protons.
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Question 46.67 pts
Which of the statements below is correct?
Statement Determines identity of an atom Determines reactivity of an atom
1 Electron Cloud Neutron
2 Valence Electrons Protons
3 Protons Valence Electrons
4 Neutrons Electron Cloud
Group of answer choices
2
1
3
4
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Question 56.67 pts
An atom is extremely tiny, and is considered the smallest part of matter. In order to be classified as matter, an atom must have mass. What makes up most of the atom’s mass?
Group of answer choices
The nucleus because it contains protons and neutrons
The nucleus because it contains protons and electrons
The electron cloud because it has the most volume in the atom
The nucleus because it contains all three subatomic particles
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Question 66.67 pts
Below is a partial periodic table showing the location of 6 elements. How many valence electrons will the element marked by #6 have?
**The numbers, 1-6, are marking locations of elements, the numbers do not represent atomic numbers.
Group of answer choices
8
6
4
18
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Question 76.67 pts
Which of the following best describes an electron?
Group of answer choices
It has a positive charge, and much more mass than a neutron.
It has no charge, and about the same mass as a proton.
It has a negative charge, and much less mass than a proton.
It has a negative charge, and about the same mass as a neutron.
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Question 86.67 pts
Which atom model below is the least reactive?
Group of answer choices
A
C
D
B
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Question 96.67 pts
Which statement is correct about the periodic table below? Choose all that are correct.
Group of answer choices
Element 3 is an average conductor of electricity.
Element 3 has 3 more valence electrons than Element 1
Element 2 has the same number of electrons as element 4.
Element 2 has the same number of energy levels as element 4.
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Question 106.67 pts
Valence electrons are
Group of answer choices
the electrons in the outermost occupied shell of an atom. Valence electrons determine reactivity of an atom.
the electrons located in all of the shells added together. Valence electrons determine the mass of an atom.
the electrons located in the shell closest to the nucleus. Valence electrons determine reactivity of an atom.
the electrons located in the outermost occupied shell of an atom. Valence electrons determine the mass of the atom.
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Question 116.67 pts
Which element has 6 energy levels and 7 valence electrons?
Group of answer choices
Seaborgium (Sg)
Rhenium (Re)
Astatine (At)
Polonium (Po)
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Question 126.67 pts
What is the mass number of a Cesium (Cs) atom that has 78 neutrons?
Group of answer choices
132.9
132
133
55
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Question 136.67 pts
A model of Beryllium is shown. What type of particles are found in the cloud surrounding the atom's nucleus?
Group of answer choices
Positively charged particles only
Neutral particles and positively charged particles
Positively and negatively charged particles
Negatively charged particles only
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Question 146.67 pts
Below is a partial periodic table showing the location of 6 elements. Which would be more reactive, an element found in the same group as Element 5, or an element found in the same group as Element 6?
**The numbers, 1-6, are marking locations of elements, the numbers do not represent atomic numbers.
190.PNG
Group of answer choices
Elements in the same group as Element 5
Both groups are non-reactive.
Both groups are very reactive.
Elements in the same group as Element 6
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Question 156.67 pts
A new element has been discovered, and it has been placed at the bottom of Group 1. What physical and chemical properties will this element have?
Group of answer choices
dull, brittle, not reactive
average conductor, shiny , reactive
shiny, malleable, reactive
dull, brittle, reactive
I may be dense but I don't get it. I don't see any information to solve any of the post. If "flag" is the question there is not a table that follows to give information. If you redo this to make more sense note that you need to post 1 question at a time. You are not likely to get a response to group of questions that will take an hour or more to answer.
To identify an element shown, you need more information such as its atomic number or symbol. Without more information, it is not possible to identify the element.
To reach a reasonable conclusion about the unknown substance based on the given information, you need to analyze the properties listed in the table. Consider the properties of metals, metalloids, noble gases, and non-metals and compare them to the properties listed for the unknown substance. Based on this comparison, select the most appropriate conclusion about the substance.
To accurately compare the elements shown in the table, analyze the given statements and determine which statement accurately compares the elements based on factors like reactivity, valence electrons, neutrons, and protons.
To determine which statement is correct about determining the identity and reactivity of an atom, analyze the given statements and match each property to the correct component of an atom.
To determine what makes up most of an atom's mass, analyze the given answer choices and consider the components of an atom. Pay attention to the role and characteristics of the nucleus and the electron cloud.
To find out how many valence electrons the element marked by #6 will have, analyze the periodic table and count the number of electron shells/energy levels and the number of electrons in the outermost shell for that element.
To describe an electron accurately, analyze the given answer choices and consider the charge and mass of an electron relative to other subatomic particles.
To determine which atom model is the least reactive, compare the given atom models and consider factors like electron arrangement, valence electrons, and stability.
To determine correct statements about the periodic table, analyze the given information and compare the properties of the elements listed. Look for accurate statements about their conductivity, valence electrons, number of electrons, and energy levels.
To understand what valence electrons are, analyze the given answer choices and consider their location and role in an atom. Determine which statement accurately describes valence electrons and their impact on atom reactivity and mass.
To identify the element with 6 energy levels and 7 valence electrons, analyze the given answer choices and compare them to the descriptions of the elements. Focus on the number of energy levels and valence electrons mentioned.
To find the mass number of a Cesium (Cs) atom with 78 neutrons, analyze the given information about mass number and neutrons. Use the periodic table to find the atomic number of Cesium and add the number of neutrons to find the mass number.
To determine the type of particles found in the cloud surrounding Beryllium's nucleus, analyze the given options and consider the charge and location of different particles. Determine which type(s) of particles are present in the cloud.
To determine which group of elements is more reactive, compare the groups of Element 5 and Element 6 on the periodic table and consider their positions and properties. Determine which group is more likely to be reactive based on their similarity.
To determine the physical and chemical properties of a newly discovered element placed at the bottom of Group 1, analyze the given options and the properties associated with different groups on the periodic table. Match the properties to identify the most appropriate description.