Alithium ion is different than a lithium atom because it
a.
is much more massive.
b.
has an extra neutron.
c.
has a different electric charge.
d.
is in a different group in the periodic table.

I think the answer is C. a lithium ion is formed when the lithium atom loses an electron. the only thing that changes is the number of electrons so A,B and D cannot be correct.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.