The element whose a atom has mass of 10.86 10^ - 26 kg is - Vidyadip

MCQ

The element whose a atom has mass of $10.86 \times {10^{ - 26}}$ $kg$ is

A
Boron
B
Calcium
C
Silver
✓
Zinc

✓

Answer

Correct option: D.

Zinc

d
(d) $1$ atom has mass $ = 10.86 \times {10^{ - 26}}kg$ $ = 10.86 \times {10^{ - 23}}\,gm$

$6.023 \times {10^{23}}$atoms has mass =$10.86 \times {10^{ - 23}} \times 6.023 \times {10^{23}}$ = $65.40\,gm$

This is the atomic weight of $Zn.$

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