10 Multiple Choice Questions on Electron

1) What does the atomic number of an element represent?

A) Number of neutrons

B) Number of protons

C) Number of electrons only

D) Atomic mass

2) Who discovered the electron?

A) Albert Einstein

B) J.J. Thomson

C) Ernest Rutherford

D) Niels Bohr

3) What charge does an electron have?

A) Positive

B) Neutral

C) Negative

D) Double positive

4) Where are electrons located in an atom?

A) In the nucleus

B) Orbiting the nucleus

C) In the center of protons

D) Between neutrons

5) Which type of bond involves sharing electrons?

A) Ionic bond

B) Covalent bond

C) Metallic bond

D) Hydrogen bond

6) What particles are found in the nucleus of an atom?

A) Protons only

B) Neutrons only

C) Electrons and neutrons

D) Protons and neutrons

7) What determines the chemical properties of an atom?

A) Neutrons

B) Protons

C) Electrons

D) Nucleus

8) What type of bond is formed when atoms transfer electrons?

A) Ionic bond

B) Covalent bond

C) Metallic bond

D) Hydrogen bond

9) What role do electrons play in metals?

A) Form ionic bonds

B) Remain fixed

C) Move freely between atoms

D) Join neutrons

10) Which scientist's experiment contributed to the discovery of the electron?

A) J.J. Thomson's cathode ray experiment

B) Rutherford's gold foil experiment

C) Bohr's model

D) Einstein's photoelectric effect