Question

Short Answer Questions 1. Define periodicity and explain cause of periodicity of elements. Define modern periodic law and explain typical elements ​

Answer 1

Answer:

The cause of periodicity is the recurrence of similar electronic configuration i.e. same number of electrons in the outermost orbit.In a particular group, electrons in the outermost orbit remain the same i.e. electronic configuration is similar.

Explanation:

Physical and chemical properties of elements are a periodic function of their atomic numbers (or protons). Modern periodic law states that the properties of elements are dependent on their atomic numbers and elements show similar properties at regular interval of increasing atomic number.

I hope it's helpful for you

plz mark me brainlist