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.
plz !

The question is asking why a lithium ion is different from a lithium atom. The correct option is C. Lithium has an atomic number of 3, which means that a lithium atom has three electrons. During chemical reactions, lithium usually donate one electron to other elements there by becoming a positively charged ion. Thus, a lithium atom has 3 electrons and is neutral while a lithium ion has two electrons and is positively charged.

The answer is b hope this