Answer:
(a) \[L{{i}_{2}}O;\] Li
- val 1 and O - val 2
(b) \[M{{g}_{3}}{{N}_{2}};\]
Mg - val 2 and N - val 3
(c) \[Al{{I}_{3}};\]
Al - val 3 and I - val 1
(d) \[Si{{O}_{2}}\];
Si - val 4 and O - val2
(e) \[P{{F}_{3}}\,\text{or}\,\text{P}{{\text{F}}_{5}}\]; P
- val 3 or 5 and F - val 1
(f) \[Lu{{F}_{3}}\]; Lu - val 3 and F - val 1
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