Question

State reason for the following

(a) The elements of the same group have similar chemical properties.

(b) The elements of the same period have different properties.​

Answer 1

Answer:

a)

Elements in the same group have similar properties because they have the same number of valence electrons in their outermost shell. Elements in the same period have different properties because the number of valence electrons in their outermost shells differ.

B)

Elements in the same period have different properties because the number of valence electrons in their outermost shells differ. ... In a given column or group, all elements have the same number of electrons in their outermost shells. For example, in group 2, all elements have two electrons in their outermost shell.

Explanation:

hope it help uhhh.....

Answer 2

Answer:

a) Because they have same no. of valence electrons.

b) Because they have different no.of valence electrons in their atom.