Question

Why atomic mass of an atom is defined as relative atomic mass•••

Answer 1

atomic mass of an atom is defined as relative atomic atomic because the mass of any atom is compared with 1/12 of the mass of 1 carbon atom and thus known as atomic mass. hope it helps. plzz mark me as brainlist..

Answer 2

Atomic mass of an atom is defined as relative atomic mass because:

1. Relative atomic mass is the comparison of 1/12th the mass of one carbon atom. This is the reason why an atom's atomic mass is defines as relative atomic mass.

2. When we add the total number of protons and neutrons of an atom, then we can find out the atomic mass of an atom.

For example: let us consider an atom Boron

In Boron, there are 5 protons and also 5 neutrons.

Therefore, the atomic mass of Boron will be :

Number of protons + number of neutrons

5+5

10

3. We can analyse the mass of an atom with the help of mass spectroscopy.

4. In case of isotopes of an atom, the relative atomic mass refers to the average value of all the mass of atom of the different isotopes.

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