MCQ
Many elements have non-integral atomic masses because :
- AThey have isotopes
- BTheir isotopes have non-integral masses
- CTheir 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.
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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