Answer
$$ 1.00 \times 10^{22} \space atoms \space of \space carbon$$
Work Step by Step
- Calculate or find the molar mass for $ C $:
$ C $ : 12.01 g/mol
$$0.200 \space g \times \frac{1 \space mole}{ 12.01 \space g} \space mole \space \times \frac{6.02 \times 10^{23} \space atoms }{1 \space mole} = 1.00 \times 10^{22} \space atoms $$
