Given mass of tungsten, W = 415 g
Molar mass of tungsten, W = 183.85 g/mol
Calculating moles of tungsten from mass and molar mass:

The answer is the principal quantum number
Hope this helps
2(units), Force = mass * acceleration, so mass = force/acceleration, which is 2
Explanation:
Single covalent bonds
When an atom needs 1 electron to attain noble gas configuration they share rhe atoms in order to gain this ex ; H2 molecule
double covalent; O2 molecule
triple covalent; N2 molecule