Chapter 3: Atomic Structure

Question 1

What are the relative charges of protons, neutrons and electrons?

Answer 1

+1, 0, -1 respectively

Question 2

Which category of sub-atomic particles is the number unique to the element?

Answer 2

Protons.

Question 3

What are isotopes?

Answer 3

Isotopes are atoms of the same element with the same no. of protons but different no. of electrons. They have similar chemical properties as they have the same no. of valence electrons, and physical properties that differ slightly due to different relative mass.

Question 4

What is covalent bonding?

Answer 4

Sharing of electrons between non-metal and metal atoms

Question 5

What is ionic bonding?

Answer 5

Transferring of electrons from a metal to a non-metal atom