posted by Bryan .
how many electrons does nitrogen gain in order to achieve a noble-gas electron configuration? is it 4?
Nope, it's 3. Looking across period 2, you can see that Nitrogen has 5 valence electrons. It wants 8. 8-5=3.
Thanxs. How many significant figures are in the measurement 811.40 grams?
Five. Here is a good site for s.f.
how many significant figures are in 811.40
convert the rate 60m/s to units of km/hr?