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A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
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2 votes
A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?

User Enzio
by
8.4k points

2 Answers

5 votes

Answer:

C

Step-by-step explanation:

calcium

User Andrey Stukalenko
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8.2k points
5 votes
The answer would be Ca. Calcium
User SpencerX
by
8.3k points
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