SATHEE: Some Basic Concepts Of Chemistry Question 193

Some Basic Concepts Of Chemistry Question 193

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

Options:

A) Boron

B) Calcium

C) Silver

D) Zinc

Show Answer

Answer:

Correct Answer: D

Solution:

1 atom has mass $= 10.86 \times 10^{- 26} k g$

$= 10.86 \times 10^{- 23} g m$

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

This is the atomic weight of Zn.

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Some Basic Concepts Of Chemistry Question 193

Question: The element whose a atom has mass of 10.86×10−26 kg is

Options:

Answer:

Solution:

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