contestada

Arrange the following elements in order from lowest to highest first ionization energy : AI , Ar, Cs, Na .

Respuesta :

pajamikopa

Answer:francium

The first ionization energy varies in a predictable way across the periodic table. The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.

Explanation:

The least measure of the energy needed to remove the loosely bound electron of an atom or a molecule is called ionization energy.

The correct order from lowest to highest first ionization energy is:

  • Cs

  • Na

  • Al

  • Ar

This can be explained as:

  • (Cs) Caesium will have the lowest energy because in the periodic table it comes in the same group as (Na) sodium.

  • In the group, from top to bottom the ionization energy decreases.

  • (Al) aluminium and (Ar) argon lies in the same period.

  • In a period from left to right the ionization energy increases.

Therefore, Cesium will have the least ionization energy as compared to sodium, aluminium and argon.

To know more about ionization energy follow the link:

https://brainly.com/question/2571722

Otras preguntas