1.

The number of atoms in 0.004 g of magnesium is close to (atomic mass of Mg = 24)

Answer»

24
`2 xx 10^20`
`10^20`
`6.02 xx 10^23`

Solution :24 G of `MG = 6 xx 10^23` atoms
0.004 g of Mg ` = (6 xx 10^23)/(24) xx 0.004= 1 xx 10^20`


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