Question

What is Atomic Number ?

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Answer 1

Answer:

Atomic number is the Number of protons present in the nucleus of an atom of an element. It is represented by the letter 'z'

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Answer 2

Answer:

The atomic number of a chemical element is the number of protons found in the nucleus of every atom of that element.

Explanation:

Why is atomic number important?

Atomic number is called the number of protons in an atom. This number is very important, because it is unique to a given element's atoms. An element's atoms all have the same number of protons and each element has a different number of protons in its atoms.

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• Atomic number of oxygen -- 8
• Atomic number of carbon -- 6
• Atomic number of iron -- 26
• Atomic number of cooper -- 29
• Atomic number of sulphur -- 16
• Atomic number of sodium -- 11
• Atomic number of potassium -- 19 and so on

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