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The atomic number of nitrogen is 7. The number of electrons a neutral nitrogen atom has is _______ , and its atomic mass is approximately _______ amu.
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Respuesta :

Electrons - 7
Atomic mass - 14

These are the answers to your question. I took chemistry too and I remember doing these I just looked through my old notes! For future reference, you can find the number of Electrons by subtracting the number of protons (7) from the element's mass number (14).
samueladesida43

The number of electrons a neutral nitrogen atom has is 7, and its atomic mass is approximately 14 amu.

ATOM:

  • An atom is made up of three subatomic particles namely; neutron, proton and electron. The proton number is equivalent to the atomic number of the element.

  • In a neutral atom, the number of atoms is equal to the number of electrons. This means that for a nitrogen atom with atomic number 7, the electron number is also 7.

  • The mass number or atomic mass is the sum of the proton and neutron in the atom. Number of neutrons in nitrogen is 7, hence, the atomic mass is 14 amu i.e. 7 + 7 = 14.

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