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Tholle · Answer 1 · 2023-12-29T20:24:29+0000

Answer: in a sodium atom, there are 11 electrons and 11 protons. Thus the atomic number of Na atom = number of electrons = number of protons = 11.

Step-by-step explanation:

Jhhwilliams · Answer 2 · 2023-12-31T08:23:51+0000

The circled number in red is the atomic number.

(The site I used for this example is ptable.com. Very useful periodic table!)

What is an example of an atomic number-example-1

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