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KengaRu [80]
2 years ago
11

What are valence electrons? The number of neutrons in a nucleus. The number of protons in the nucleus. The atomic mass is the sa

me as the number of valence electrons. The number of electron in the outer most shell of an atom.​
Chemistry
1 answer:
Tanzania [10]2 years ago
3 0

Valence Electrons are The number of electrons in the outer most shell of an atom. These shells have a maximum amount before being filled by electrons, in which remaining electrons will fill the next remaining valence shell.

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What prefix should be used to name a hydrocarbon that has a six-carbon parent chain?a.hex- b.meth- c.non- d.sept-
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A. hex- Normally with 6, the prefix is hex-. For example a polygon having 6 sides is known as hexagon.
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Need help with the question
Sloan [31]

Answer:

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for b i think it is the first choice

Explanation:

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What would happen if there were no neutrons in an atom?
AnnyKZ [126]
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3 years ago
Chlorine has two stable isotopes, Cl-35 and Cl-37. If their exact masses are 34.9689 amu and 36.9695 amu, respectively, what is
natima [27]

Answer:

X(Cl-35) = 75.95% => Answer 'A'

Explanation:

34.9689·X(Cl-35) + 36.9695·X(Cl-37) = 35.45; X = fractional abundance

X(Cl-35) + X(Cl-37) = 1  ⇒  X(Cl-37) = 1 - X(Cl-25)

34.9689·X(Cl-35) + 36.9695(1 - X(Cl-35)) = 35.45

34.9689·X(Cl-35) + 36.9695 - 36.9695·X(Cl-35) = 35.45

Rearrange ...

36.9695·X(Cl-35) - 34.9689·X(Cl-35) = 36.9689 - 35.45

2.0006·X(Cl-35) = 1.5195

X(Cl-35) = 1.5195/2.0006 = 0.7595 fractional abundance

⇒ % abundance = 75.95%

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