Question

Define atomic number isotopes valancy ?

Answer 1

Answer:

Atomic number: Number of protons in the nucleus gives atomic number of an element

Answer 2

Answer:

• Atomic number: Number of protons in the nucleus gives atomic number of an elements.  Mass number: The sum of total number of protons and total number of neutrons present in the nucleus of an atom gives mass number. Isotopes: The atoms of same elements with same atomic number but different mass number.

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