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

How many total electrons can be held in the second energy level?

Back

8 electrons.

Front

What are valence electrons?

Back

The outermost electrons of an atom that are involved in chemical bonding.

Front

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

Back

18 electrons.

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s²?

Back

Magnesium.

Front

What are f-block elements?

Back

Elements that have their last electron entering an f orbital, including lanthanides and actinides.

Front

What is the significance of the periodic table in electron configuration?

Back

It helps predict the electron configuration based on the element's position, indicating its energy levels and valence electrons.

Front

What is an orbital diagram?

Back

A visual representation of the electron configuration of an atom, showing the distribution of electrons in orbitals.

Front

What is the difference between core electrons and valence electrons?

Back

Core electrons are the inner electrons that are not involved in bonding, while valence electrons are the outermost electrons that participate in chemical reactions.