Helium (He)has an atomic number of 2.It is chemically stable because it
A)is neutral in electrical charge.
B)readily ionizes to react with other atoms.
C)has a full outer electron shell.
D)will form a covalent bond with another He atom.
E)lacks electrons,thus the He atom is stable.

Question

Quizplus · Accepted Answer

Helium has 2 electrons, occupying a full 1s orbital, which is its outermost energy level. As a result, it is chemically inert and does not readily react with other atoms. It is considered stable due to the full electron shell.

Helium (He)has an Atomic Number of 2