Question

Explain periodicity of elements and also explain it's causes it's urgent don't copy from google please give me correct answer.

Answer 1

$\huge \mathfrak {Answer:-}$

When elements are arranged in $\bold{increasing\:order}$ of their atomic number in the periodic table, a repetition in properties after a $\bold{definite\:interval}$ is observed.

This $\bold{repetition}$ of properties is known as periodicity of properties of elements.

$\huge {Be\:Brainly}$❤️