Periodic classification medium

Periodic Classification Quiz (Medium)

1. Which scientist first formulated the modern periodic law in the 19th century?

a) Dmitri Mendeleev b) J.J. Thomson c) Niels Bohr

2. The periodic table is arranged based on the:

a) Atomic mass b) Atomic number c) Number of protons

3. The elements in the modern periodic table are arranged in how many periods?

a) 7 b) 8 c) 18

4. Which of the following elements belongs to Group 17 of the periodic table?

a) Sodium (Na) b) Chlorine (Cl) c) Carbon (C)

5. The modern periodic table consists of how many groups?

a) 7 b) 8 c) 18

6. The element located in period 4 and Group 2 of the periodic table is:

a) Sodium (Na) b) Magnesium (Mg) c) Carbon (C)

7. Which of the following is not a characteristic of the elements in Group 1 of the periodic table?

a) Alkali metals b) One valence electron c) Highly reactive

8. The element with the highest electronegativity value in the periodic table is:

a) Fluorine (F) b) Oxygen (O) c) Nitrogen (N)

9. The transition elements in the periodic table are located in:

a) Groups 1 and 2 b) Groups 13 to 18 c) The d-block

10. Elements in the same group of the periodic table have similar:

a) Number of neutrons b) Atomic mass c) Chemical properties