Question

Which of the following statements is true about the lithium and the helium atoms?
A.
Helium has more protons, neutrons, and electrons.
B.
Lithium has more protons, neutrons, and electrons.
C.
There is no difference between helium and lithium.
D.
Lithium is much smaller than helium.

Answer 1

B

Lithium has 3 protons and (in its most common isotope) 4 neutrons and 3 electrons, whereas helium has 2 protons, 2 neutrons (He‑4) and 2 electrons.