Question

Which one of the following has maximum number of atoms?

• A. $\text{1 g of Mg(s)}$[Atomic mass of $\text{Mg = 24}$]
• B. ${\text{1 g of O}}_2\text{(g)}$[Atomic mass of $\text{O = 16}$]
• C. $\text{1 g of Li(s)}$[Atomic mass of $\text{Li = 7}$]
• D. $\text{1 g of Ag(s)}$[Atomic mass of $\text{Ag = 108}$]

Answer 1

The correct option is C $\text{1 g of Li(s)}$[Atomic mass of $\text{Li = 7}$]

$\left(a\right)$ Number of $\text{Mg}$ atoms = $\frac{1}{24}\times N_A$
$\left(b\right)$ Number of $\text{O}$ atoms = $\frac{1}{32}\times 2\times N_A$
$\left(c\right)$ Number of $\text{Li}$ atoms = $\frac{1}{7}\times N_A$
$\left(d\right)$ Number of $\text{Ag}$ atoms = $\frac{1}{108}\times N_A$
Hence, the correct answer is option (c).