Match each of the unknown ions to its appropriate description. (4 points) Column A
1.
A−

:
A−

2.
B+:
B+
3.
C2−

:
C2−

4.
D2+

:
D2+

Column B
a.
A nonmetal that gained one electron

b.
A metal that lost one electron

c.
A nonmetal that gained two electrons

d.
A metal that lost two electrons

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

ok whats the question if not i cannot you i need question and need a thing to answer

yes the answer is total mass in unchanged   : )