Structur of atom easy

Structure of an Atom Quiz (Easy)

1. Who discovered the electron?

a) Albert Einstein b) Ernest Rutherford c) J.J. Thomson d) Isaac Newton

2. What is the charge of a proton?

a) Positive b) Negative c) Neutral d) None of the above

3. The number of electrons in a neutral atom is equal to:

a) Number of protons b) Number of neutrons c) Number of nucleons d) None of the above

4. The nucleus of an atom is made up of:

a) Protons and neutrons b) Protons and electrons c) Electrons and neutrons d) None of the above

5. Which subatomic particle has negligible mass?

a) Proton b) Neutron c) Electron d) Nucleus

6. What is the total number of electrons in the first energy level of an atom?

a) 1 b) 2 c) 8 d) 18

7. The mass number of an atom is equal to:

a) Number of protons b) Number of electrons c) Number of protons and neutrons d) None of the above

8. What is the atomic number of an element?

a) Number of protons b) Number of electrons c) Number of protons and neutrons d) None of the above

9. The number of protons in the nucleus of an atom determines its:

a) Mass number b) Atomic number c) Charge d) Electronegativity

10. The negatively charged particles in an atom are:

a) Protons b) Neutrons c) Electrons d) Nuclei