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

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged