Lesson Check - Electrons Conf of Ions(2024-2025)

Front

What is the electron configuration of a neutral Nitrogen atom?

Back

1s² 2s² 2p³

Front

How many valence electrons does a Nitrogen atom have?

Back

5 valence electrons

Front

What charge does a Nitrogen ion have when it gains 3 electrons?

Back

-3 charge (N³-) because it gains 3 electrons.

Front

What is the electron configuration of an Aluminum ion (Al³+)?

Back

1s² 2s² 2p⁶ (same as Neon) because it loses 3 electrons.

Front

What is the electron configuration of a Chloride ion (Cl⁻)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ (same as Argon) because it gains 1 electron.

Front

What is the electron configuration of an oxide ion (O²-)?

Back

1s² 2s² 2p⁶ (same as Neon) because it gains 2 electrons.

Front

What is the significance of valence electrons in ion formation?

Back

Valence electrons determine how an atom interacts with other atoms and whether it will gain or lose electrons to form ions.

Front

What is the electron configuration of a Sodium ion (Na⁺)?

Back

1s² 2s² 2p⁶ (same as Neon) because it loses 1 electron.

Front

What is the electron configuration of a Beryllium ion (Be²+)?

Back

1s² (because it loses 2 electrons).

Front

What is the electron configuration of a Boron ion (B³+)?

Back

1s² 2s² (because it loses 3 electrons).