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LubosD · Answer 1 · 2023-09-29T12:38:16+0000

Answer:

the atomic number is 5 (Boron)

Step-by-step explanation:

The atomic number always equals the number of protons in the nucleus (they have a positive charge). Since there are 5 protons in the diagram, the atomic number is 5.

Adam Shiemke · Answer 2 · 2023-10-03T06:56:47+0000

Answer:

The atomic number is 5.

Step-by-step explanation:

There are 5 protons in the nucleus, so the atomic number is 5. The atomic number always equals the number of protons in the nucleus.

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