Science, asked by aashishyadav7789, 5 months ago

what is the atomic number of this element​

Answers

Answered by shivam000420
6

Explanation:

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

Answered by Anonymous
65

Question:-

what is the atomic number of this element

Answer:-

The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.

Given:-

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Atomic number = Number of protons

Thus the atomic number of Na atom = number of electrons

number of protons = 11.

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