Ions, cations and anions

Front

What are the names of the electron shells numbered 1, 2, 3, and 4?

Back

K, L, M, N

Front

What is the electron configuration of Boron (B) with 5 electrons?

Back

2, 3

Front

Why do electrons repel each other in their shells?

Back

Because their negative charges repel.

Front

What is the notation for a Beryllium atom that has lost 2 electrons?

Back

Be²⁺

Front

What is the electron configuration of Nitrogen (N)?

Back

2, 5

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions (lost electrons), while anions are negatively charged ions (gained electrons).

Front

How many electrons can the K shell hold?

Back

The K shell can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons that can occupy the L shell?

Back

The L shell can hold a maximum of 8 electrons.

Front

What happens to the charge of an atom when it loses electrons?

Back

It becomes a positively charged ion (cation).