Answer
$4.1\ g$ $He$ has the greater mass.
Work Step by Step
- $6.022 \times 10^{23}$ $He$ atoms:
$6.022 \times 10^{23}$ atoms = 1 mol
Molar mass $(He)$ = 4.0g/mol
Therefore, 1 mol $He$ = 4.0 g
$4.1g > 4.0g$
In mass: 4.1 g $He$ > $6.022 \times 10^{23}$ $He$ atoms.
