Pick the element before (atomic number that is) and the element after Ar.
Do the same for Xe.
how do I find two positive ions and two negative ions that are isoelectronic with
a) Ar
b) Xe
2 answers
what is molarity of a solution by dissolving 10.0g of acetone, c3h6o, in enough water to make 125 ml of solution?
1 answer