Choose all the answers that apply. Magnesium (Mg) has 12 protons and 12 neutrons. Magnesium has.

an atomic weight of 12
an atomic number of 24
12 electrons
an atomic mass of 24
5 electron shells

What is the temperature of one mole of helium gas at stp?

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.