They all have 2 elections in the outer S orbital, and 4 electrons in the P orbitals.
Counting gives an exact number and exact numbers have infinite sig figs.
The correct scientific instrument is telescope.
Answer:
0.719 moles of NH₃
Explanation:
Molar mass of ammonia 17 g/mol
Mass of amonia = 12.23 g
Mass / Molar mass = Moles
12.23 g / 17 g/mol = 0.719 moles