Electron Configuration

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating the energy levels and sublevels occupied by electrons.

Front

What does the notation 1s² 2s² 2p⁶ represent?

Back

It represents the electron configuration of an atom, showing the number of electrons in each subshell.

Front

What is the significance of the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to greater stability.

Front

How many electrons can the s subshell hold?

Back

The s subshell can hold a maximum of 2 electrons.

Front

How many electrons can the p subshell hold?

Back

The p subshell can hold a maximum of 6 electrons.

Front

What is the electron configuration for an oxygen atom?

Back

1s² 2s² 2p⁴.

Front

What is the electron configuration for a magnesium atom?

Back

1s² 2s² 2p⁶ 3s².

Front

What is the electron configuration for a krypton atom?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶.

Front

What is electron dot notation?

Back

A representation of an element that shows only the valence electrons surrounding the element's symbol.

Front

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

Back

The third energy level can hold a maximum of 18 electrons.