Electrons in Atoms

Front

What happens when an electron moves from a higher energy level to a lower energy level?

Back

The electron releases energy.

Front

How many electrons are in a silicon (Si) atom?

Back

14 electrons.

Front

What is the electron configuration for magnesium?

Back

1s² 2s² 2p⁶ 3s².

Front

How many orbitals are present in the 4d sublevel?

Back

5 orbitals.

Front

How many valence electrons does silicon (Si) have?

Back

4 valence electrons.

Front

What is the maximum number of electrons that can occupy the first energy level (n=1)?

Back

2 electrons.

Front

What is the shape of the p orbital?

Back

Dumbbell-shaped.

Front

What is the principle that states electrons fill orbitals starting from the lowest energy level?

Back

Aufbau principle.

Front

What is the term for the outermost electrons in an atom?

Back

Valence electrons.

Front

What is the maximum number of electrons in the third energy level (n=3)?

Back

18 electrons.