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djyliett [7]
3 years ago
15

HELP!!!

Chemistry
1 answer:
Evgesh-ka [11]3 years ago
5 0

Answer: with dog figs- it is 590

With decimals it is 589.68

Explanation:

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A neutral atom has an atomic number of 20 and a mass number of 42. How many electrons does the atom have?
Bingel [31]

If we have a neutral atom, then it has the same number protons and neutrons.

The number protons and neutrons for neutral atom shows atomic number.

"A neutral atom has an atomic number of 20" means that atom has 20 protons (that give charge "+ 20" ) and 20 electrons (that give charge "-20").

Answer is 20 electrons.


6 0
3 years ago
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Answer:

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Explanation:

In order to arrive at a molecular formula we have to make some assumptions and they are

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next step: subtract the total mass from 112.0499 = 82.501

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3 years ago
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- increasing the concentration of N₂
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