Many elements have non-integral atomic masses because : - Vidyadip

MCQ

Many elements have non-integral atomic masses because :

A
They have isotopes
B
Their isotopes have non-integral masses
C
Their isotopes have different masses
✓
The constituents neutrons, protons and electrons combine to give fractional masses

✓

Answer

Correct option: D.

The constituents neutrons, protons and electrons combine to give fractional masses

d
Elements have non integral atomic masses because isotopes are having different masses and are occur in the nature in different proportion.

Eg. $Cl ; z =17$ and $A =35$ and $37$. They are present in the ratio $3: 1$.

$\therefore \frac{3 \times 35+1 \times 37}{4}=35.5( A )$

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