Electron Configuration: Atom v. Ion

Front

What is an electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating how many electrons are in each energy level.

Front

What happens to an atom when it gains electrons?

Back

It becomes a negatively charged ion.

Front

What is the electron configuration of a neutral calcium atom (Ca)?

Back

2.8.8.2

Front

What is the electron configuration of Aluminium (Al)?

Back

2.8.3

Front

Which element has the electron configuration of 2.8.8?

Back

Argon (Ar)

Front

What is the electron configuration of Silicon (Si)?

Back

2.8.4

Front

What is a positively charged ion called?

Back

Cation, formed when an atom loses electrons.

Front

How many electrons can the first energy level hold?

Back

2 electrons.

Front

What is the maximum number of electrons in the second energy level?

Back

8 electrons.

Front

What is the significance of the octet rule in electron configuration?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.