Atomic # 64
electronic configuration is *[Xe] 6s^2 4f^8
n = 4
ℓ = 3
mℓ<span> = -3</span>
ms<span> = -½</span>
Answers:
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1) [D]: " CO₂ " .
<u>Note:</u><u> </u> This is the only answer choice given that is composed of: "at least two different elements" .
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2) [D]: "carbon and hydrogen" {"C" and "H" .} .
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Answer:
I think A but to be fair if you get it wrong I am a 6th grader
Explanation:
Answer:
, CaCO3, contains one atom of calcium, one of carbon and three of oxygen. so t<u>here are 5 atoms in CaCO3</u>
Mg(OH)2, There is one magnesium, two oxygen, and two hydrogen atoms. so <u>there are 5 atoms Mg(OH)2</u>
a molecule of acetic acid contains two carbon atoms, four hydrogen atoms, and two oxygen atoms. <u>so there are 8 atoms in acetic acid </u>
There are <u>3 atoms in CaCl2</u>
H2SO4 is a chemical compound made up of two hydrogen atom, one sulfer atom, and four oxygen atoms. <u>So there are 7 atoms in H2SO4</u>
There are <u>8 atoms in sodium phosphate</u>
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Explanation:
Answer:
Frequency
Explanation:
When we talk about crests, we are referring to the high points of a wave.
We measure wave frequency by counting out the the number of crests (or high points) of a given wave that pass by a given point in a set amount of time. Thus, the higher the number of crests, the greater the frequency of the wave and vice versa.
We define the frequency of a wave as the number of waves that passes by a fixed point within a given period of time.
