Periodic Table IMPORTANT

Question 1

How many periods does the Periodic Table have?

Answer 1

7

Question 2

How many groups (families) are in the Periodic Table?

Answer 2

18

Question 3

Who is credited with the creation of the Periodic Table?

Answer 3

Dmitri Mandaleev

Question 4

Elements in the same period have the ____________

Answer 4

same number of electron orbitals