Question

how to find atomic mass​

Answer 1

Answer:

To find out the atomic mass of any elements simply add the mass of protons and neutrons .

Hope it helps you.

Answer 2

I am having an easy trick :-

Since the combined masses of protons and neutrons account for almost all of the mass of the given atom, the atomic mass of the single atom can be calculated by adding the total number of protons and the total number of neutrons of that particular isotope.

The number of protons in a given atom is always equal to its atomic number. For example, the atomic number of oxygen is 8, therefore the total number of protons in an oxygen atom is 8. The total number of neutrons is generally specified when describing which isotope the atom belongs to.

Example: Calculation of the atomic mass of an oxygen molecule with 9 neutrons.

Total number of protons in oxygen = Atomic number of oxygen = 8

Total number of neutrons in the isotope (given) = 9

Atomic mass of the given oxygen atom = 8+9 = 17

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