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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.

Sagot :

Neetoo

Answer:

The number of electron in neutral atom of nitrogen are 7.

Atomic mass = 14 amu

Explanation:

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.

The number of electron in neutral atom of nitrogen are 7.

Thus its atomic number is also 7.

Atomic mass = number of proton + number of neutron

Atomic mass = 7 + 7

Atomic mass = 14 amu

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