PLEASE HELP
What electron could have quantum numbers n=3, l=0, ml=0, ms=-1/2

What diagram shows the ionic compound of magnesium oxide

One does not belong why? ice, gold ,wood ,diamond and table salt

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c