- (D) The mass number, 32, is the total number of neutrons and protons. Since
the atomic number, 16, gives the number of protons, 32 − 16 = 16, or the
number of neutrons, statement II is false. Since this ion has a charge of 2−, it
has two more electrons than protons, or 18 electrons. Statements I and III are
true.
marvins-underground-k-12
(Marvins-Underground-K-12)
#1