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Elements
Page 9
Questions (1,501)
What atoms make up a molecule of water H20?
Select all that apply. Oganesson Oxygen Helium Hydrogen
3 answers
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Mass of oxygem
2 answers
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105 views
What does halogen mean?
light bearer angel-like noble gas forming salt former
3 answers
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23 views
Check all that apply.
Choose all that describe noble gases. monatomic radioactive inert
3 answers
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Why are halogens the most reactive nonmetal group?
They have 8 valence electrons. They have 8 electrons. They have 7 electrons.
3 answers
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Which two elements most likely have similar properties? (1 point) Responses Ca and Sc Ca and Sc Cs and Rn Cs and Rn Li and Fr Li
3 answers
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trippie
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Which element has four valence electrons?
(1 point) * sulfur (S) * silicon (Si) * beryllium (Be) * potassium (K)
3 answers
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Why are the noble gases the least reactive elements? (1 point)
• They are the elements with the smallest atomic mass. • They
3 answers
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Match the following groups with their descriptions
Column A 1. Halogens: Halogens 2. Alkali Metals: Alkali Metals 3. Alkali Earth
1 answer
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Can polyatomic element can compounds can be compared
1 answer
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Ishola shalom
74 views
Compare polyatomic element to compounds??
1 answer
asked by
Ishola shalom
63 views
9 Be 0 4 in the element above the mass number is _ and the atomic number is _
1 answer
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146 views
Based on the table Which element would contribute the most color to an image showing the composition of the Sun
1 answer
asked by
Kelly marie
64 views
What does an element of gold contain ?
1.One mixed substance of two different metals 2.A simple mixture of different atoms 3.A
2 answers
asked by
Brandy
91 views
Select the corresponding answer for each letter below to fill in the table.
Table: Symbol| 40 +1 | G | ______| ___19 K__|___|
1 answer
asked by
Apple
109 views
Which element should the researcher select for the experiment?
A.Nitrogen (N) B.Sulfur (S) C.Arsenic (As) D.Silicon (Si)
1 answer
asked by
Alfredo
87 views
Why do scientist sometimes discuss the possibility of silicone is a basic element of life
1 answer
asked by
Lee
85 views
The relative atomic mass of magnesium Mg,is 24 on the carbon-12 scale.Explain the underlined term
1 answer
asked by
Anonymous
64 views
is it gold an alkaline metal
1 answer
asked by
evidence
79 views
Lithium reacts with water to form lithium hydroxide and hydrogen gas
1 answer
asked by
Qhayiya
95 views
Organic compounds contain very few elements, whereas inorganic carbon compounds contain almost all elements. Which of the
3 answers
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This element can form a wide variety of substances, including long chains. The different substances it forms are central to the
1 answer
asked by
remi the rat
197 views
The atoms of a certain element contain 11 protons and 1 valence electron.witch statement corectly identifies this element
1 answer
asked by
elias
208 views
Connections unit 1 lesson 7 semester B unit test
8. Which four elements are commonly found in living things? A) Hydrogen, Oxygen,
1 answer
asked by
Human
342 views
Which of these is an element of a narrative?
A. presents or informs about facts B. compares like and unlike things C. has a
15 answers
asked by
help asap
1,837 views
The firest twenty element and there simboles
1 answer
asked by
Kamara
152 views
وش الليثيوم؟
1 answer
asked by
Renad
136 views
a substance that is made up of only one kind of atom is a(n)
A. compound B. homogeneous mixture C. element D. solution my answer
6 answers
asked by
yz450f rider
923 views
What are some examples of aesthetic elements in an art piece?
Thanks! :-)
4 answers
asked by
SmartNoodle
587 views
FeCl3 stand for
3 answers
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Alkali metals can be used for all but one of the following
4 answers
asked by
Cynthia
480 views
An element's atomic number is 52. How many electrons would an atom of this element have?
3 answers
asked by
laura
571 views
What it the answer to this
Two nonmetal from group 16 are likely to form what
1 answer
asked by
Landon
452 views
Which elements of design are seasonal?
(Select all that apply.) trends logos fabrics colors C,D,A?
2 answers
asked by
Bri
546 views
What mass of sodium
1 answer
asked by
Juma
272 views
So say if we're doing an electronic configuration for the element "Lead", We would do [Xe] 6s^2 and 4F^14, but we still need to
2 answers
asked by
Molly
479 views
Uranium is a radioactive element that is used to create nuclear energy.
Predicate Noun <---
3 answers
asked by
Anonymous
393 views
If an element has a +1 positive charge and the following chemical symbol, how many electrons does it have? 17 on top, 6 on
2 answers
asked by
Hannah
623 views
Luster
Malleable Ductile Conductor Solid at room temperature Which element could be described by the list of properties above?
6 answers
asked by
kalen
986 views
A sample of an ore of iron, hematite, is 70% Fe2O3. How much iron is there in 5 kilograms of the ore?
Answer in units of g.
2 answers
asked by
Kennedy
586 views
WHAT ARE THE ALLOTROPES OF ANTIMONY
1 answer
asked by
SEINI OUSMAN
284 views
Na+I_2
1 answer
asked by
Ronnie
285 views
What can be stated for a particular element if only the group number of 14 is known?
The element of four electrons The element
3 answers
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58 views
Why are the noble gases the least reactive elements?
They have the same number of electrons as protons They are all radioactive
3 answers
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45 views
Which types of baryonic matter are most abundant in the universe? Select the two correct answers.(1 point)
Responses hydrogen
7 answers
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What makes carbon one of the most important elements to life on Earth? A. it forms covalent bonds easily with other atoms. B. It
3 answers
asked by
SCJohnson
39 views
What makes carbon one of the most important elements to life on Earth?
A. it forms covalent bonds easily with other atoms. B. It
3 answers
asked by
SCJohnson
42 views
The transuranium elements
A. are the elements with atomic numbers above 92. *** B. occur in nature. C. are sometimes radioactive.
2 answers
asked by
Cherry
531 views
Which element has the same number of valence electrons as bromine (Cl)?
17 answers
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KittenCrab
207 views
Chromium atomic number
10 answers
asked by
Jah Jah
21 views
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