The Periodic Table and Its Groups MCQs

1. Who is credited with creating the first widely accepted periodic table?
(A) John Dalton
(B) Dmitri Mendeleev
(C) Henry Moseley
(D) Antoine Lavoisier

2. What do elements in the same group of the periodic table have in common?
(A) Same number of neutrons
(B) Same atomic number
(C) Same number of valence electrons
(D) Same atomic mass

3. Which group contains the noble gases?
(A) Group 1
(B) Group 2
(C) Group 17
(D) Group 18

4. Elements in Group 1 of the periodic table are known as:
(A) Transition metals
(B) Alkali metals
(C) Alkaline earth metals
(D) Noble gases

5. Which of the following is a halogen?
(A) Oxygen
(B) Fluorine
(C) Helium
(D) Sodium

6. What happens to the metallic character of elements as you move from left to right across a period?
(A) It increases
(B) It remains the same
(C) It decreases
(D) It disappears completely

7. Which element is in Period 3, Group 2 of the periodic table?
(A) Sodium
(B) Magnesium
(C) Calcium
(D) Aluminium

8. Transition elements are located in which block of the periodic table?
(A) s-block
(B) p-block
(C) d-block
(D) f-block

9. The modern periodic table is arranged in order of increasing:
(A) Atomic mass
(B) Atomic number
(C) Number of neutrons
(D) Reactivity

10. Which of the following groups contains elements that are all gases at room temperature?
(A) Group 1
(B) Group 14
(C) Group 17
(D) Group 18