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Klio2033 [76]
2 years ago
7

Elaborate on how the isotopes and their relative abundances affect the average atomic mass of an element.

Chemistry
2 answers:
Lilit [14]2 years ago
8 0

Answer:

c. isotope mass both varies in neutron numbers and is weighted by its relative abundance to give the average atomic mass.

Explanation:

Isotopes differ in the number of neutrons only so they have the same atomic number but different mass number. Mass number is the sum of the number of protons and neutrons.  

Relative weighted mass of an element  

= [(relative abundance of isotope 1 x molecular mass of isotope 1) + (relative abundance of isotope 1 x molecular mass of isotope 2)] / 100

balandron [24]2 years ago
3 0
I would say c . isotope mass both varies in neutron numbers and its weighted by its relative abundance to give the average atomic mass. <span />
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How do i balance the first chemical reaction above?? plz plz help
soldier1979 [14.2K]

Answer:

2K +F₂→ 2KF

Explanation:

When we balance an equation, we are trying to ensure that the number of atoms of each element is the same on both sides of the arrow.

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Since the number of K atoms is currently balanced, balance the number of F atoms.

K +F₂→ 2KF

Now, that the number of F atoms is balanced on both sides, check if the number of K atoms are balanced.

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K atoms: 2

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The number of K atoms is not balanced.

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<u>Left</u>

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Explanation:

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