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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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Hello Gary My Man!

Well, as you can clearly see 

<span>The atomic number of an element is basically the number of protons it has. So yes, for every element this is different. Now, the mass number of an element as known, is the number of protons+the number of neutrons.  So theoretically as we can see, this number should be a whole number, but since there are different isotopes (atoms of the same element with different numbers of neutrons) of each element, most periodic tables take account of that, so they often include decimals as seen. 

So in Short, ALL</span> the atoms of a particular element have the SAME EXACT atomic number<span> (</span>number<span> of protons of course). The </span>atoms of different elements have very different numbers of protons. And of course, the MASS number of an atom is the TOTAL number as known, of protons and of course, the neutrons it contains in it.

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2 years ago
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What happens to the chemical identity of a substance during a physical change?
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5 0
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Anon25 [30]
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nalin [4]

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<em />

That means the right option is:

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6 0
2 years ago
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