Chemistry MCQ Trivia Exam! Quiz

1. The formulae NaCl represents which compound?

Sodium chloride

Water

Sulphur trioxide

Ammonia

2. The particles that are located in the nucleus of an atom are:

Protons and neutrons

Protons and electrons

Neutrons and electrons

Only protons

3. What is the electron configuration for Nitrogen?

2, 5

2, 5, 5

2,8, 1

1

4. Lithium oxide has a formulae of:

CH4

Li2O

SiO2

CaS

5. What are some of the elements that are in the noble gases group?

Hydrogen and helium

Helium, neon and argon

Lithium, sodium and potassium

Beryllium, magnesium and calcium

6. What are isotopes?

The same element but with differing mass

Different elements of the same mass

The same element with a different charge

Reactive elements

7. The particles that are negatively charged are:

Protons

Neutrons

Electrons

Only valence electrons

8. What is the symbol for Manganese?

Mg

Mn

Mo

Ag

9. The group containing the elements lithium, sodium, potassium, rubidium, caesium and francium is:

Non-metals

Noble gases

Alkaline earth metals

Alkali metals

10. What is a valence shell?

The outermost electron shell

The innermost electron shell

Another term for electron shell

11. The electron configuration for Helium is:

1

2

2, 4

2, 8, 1

12. Which of the following elements is a metal?

Oxygen

Selenium

Calcium

Radon

13. Fluorine, chlorine and bromine are part of which group?

Noble gases

Halogens

Alkaline earth metals

Other non-metals

14. Calcium has an electron configuration of:

2, 8, 8, 5

2, 8, 1

2, 8, 8, 2

2, 8, 5

15. The symbol for mercury is:

Mg

Hg

Mc

Ag

16. To determine the number of neutrons in an atom, the equation used is:

It is found on the periodic table

It is the same as the number of protons

Atomic number - atomic mass = number of neutrons

Atomic mass - atomic number = number of neutrons

17. Which of the following is a non-metal?

Argon

Potassium

Calcium

Barium

18. A E Looking at the following representation, 'A' denotes: Z

The atomic mass

The atomic number

The element symbol

The number of protons

19. Methane has a formulae of:

CH4

CuCO3

H2SO4

NaCl

20. Why are noble gases inert?

Because they are stable

Because their valence electron shell is full

Because they are unstable

A and b only

B and c only