What is meant by ”atomic number of an element''?

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Solution

Atomic number is the number of protons in the nucleus of an atom.

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Similar questions

(a) What is meant by (i) atomic number, and (ii) mass number, of an element? Explain with the help of an example.

(b) What is the relation between the atomic number and mass number of an element?

Answer the following questions.

(a) What is the difference between the models of the atom proposed by Thomson and by Rutherford?

(b) What is the characteristic property of the element hydrogen?

(d) What is meant by atomic mass number?

(e) Name the fundamental particles in an atom.

What is meant by atomicity ? Name a diatomic element.

(a) Define atomic mass unit. What is its symbol ?

(b) Define atomic mass of an element.

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