Electron Configurations

Front

What is a valence electron?

Back

Electrons in the outermost energy level of an atom.

Front

What atom matches this electron configuration: 1s² 2s² 2p⁶ 3s²?

Back

Magnesium.

Front

How many electrons are in the atom with the electron configuration 1s² 2s² 2p⁶?

Back

10.

Front

How many orbitals does a d sublevel have?

Back

5.

Front

What does each row on the periodic table represent?

Back

An energy level.

Front

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

Back

2.

Front

What is the shape of the s orbital?

Back

Spherical.

Front

How many sublevels are in the second energy level?

Back

2 (s and p).

Front

What is the electron configuration for Neon?

Back

1s² 2s² 2p⁶.

Front

What is the principle behind the Aufbau principle?

Back

Electrons fill the lowest energy orbitals first.