Question

What is atomic mass no.? Write the mass no. of Hydrogen and Calcium.​

Answer 1

Atomic mass number is the total number of neutrons and protons present in an atom of a specific element

Atomic mass number of Hydrogen is 1 u while that of Calcium is 20 u.

Answer 2

Answer:

Hydrogen :

Atomic no  =>   1

Mass no    =>  1

Calcium :

Atomic no   =>   20

Mass no       =>   40

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