29) The oxidation numbers of all the atoms in H2SO4 must add up to
A)
+9
B)
+5
C)
0
D)
+16

Hi; /c

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

The answer is fossil fuels.