The picture shows a model of a helium atom and a model of a lithium atom.

Question

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

Answer 1

The correct statement about the helium and lithium atoms is:

D. Lithium has more protons, neutrons, and electrons.

Here's a brief explanation:

• A helium atom has 2 protons and typically 2 neutrons and 2 electrons.
• A lithium atom has 3 protons, typically 4 neutrons, and 3 electrons.

Thus, lithium has more of each subatomic particle compared to helium.