Question

Which is not the characteristics of period ?

 

a) The physicalproperties ofthe elementsare not similar

b) The chemicalproperties ofthe elements

c) The elementspresent do nothave same at

d) The elementspresent havesame valence

​

Answer 1

Answer:

I think b )

Explanation:

Plz follow me..

Answer 2

Answer:

d) The elementspresent havesame valence