Q130
How many neutrons are in a hydrogen atom?
A.
one
B.
two
C.
three
D.
nothing
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
A hydrogen atom typically consists of one proton and one electron. Most hydrogen atoms have no neutrons; they only contain a proton in their nucleus.
However, hydrogen has isotopes like deuterium and tritium that contain neutrons:
Deuterium has one neutron, and Tritium has two neutrons.
Since the question is about the standard hydrogen atom, which does not have any neutrons, Option D is correct.