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Nat2105 [25]
3 years ago
6

Explain how you can determine the number of protons electrons and neutrons an atom has by its mass number and atomic number

Chemistry
1 answer:
Sholpan [36]3 years ago
8 0
The number of n protons can be easily determined by its atomic number. With the atomic number and mass number (rounded If not already), then with basic subtraction we can calculate the number of neutrons...
Hope that helped!
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Identify the oxidation state of Ba 2 + . +2 Identify the oxidation state of S in SO 2 . +2 Identify the oxidation state of S in
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The oxidation state of Ba in cation Ba²⁺ is +2

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When the elements release electrons, the element is oxidized so the oxidation state increases.

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Ba²⁺ is an element of group 2 and has a tendency to form a cation, so it can release electrons for that purpose.  At least, it can release 2 e⁻, that's why the oxidation state is +2. It can complete the octet rule and it will be isoelectronic with Xe.

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I hope this helps.

Explanation:

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