Question

Which of the following statements is about Periodic Table is CORRECT? *
a. The horizontal arrangement of elements in the periodic table is called Period and the vertical arrangement of elements in the periodic table is called Group.
b. The horizontal arrangement of elements in the periodic table is called Group and the vertical arrangement of elements in the periodic table is called Period.
c. The horizontal arrangement of elements in the periodic table is called metallic group and the vertical arrangement of elements in the periodic table is called Non-metallic Group.
d. The horizontal arrangement of elements in the periodic table is called period and the vertical arrangement of elements in the periodic table is called Group.

Answer 1

Answer:

correct answer is option (a)