Chapter 1- Atomic Structure

Question 1

Atoms contain three sub-atomic particles. Can you name them?

Answer 1

Neutron, Protons, Electrons

Question 2

Which sub-atomic particle has a mass of 1 and no charge?

Answer 2

Neutron

Question 3

What name is given to different types of atoms that have the same number of protons but numbers of neutrons?

Answer 3

Isotopes

Question 4

Which of these elements has two electrons in its outer shell?

a. Lead
b. Sodium
c. Potassium

Answer 4

Lead

Question 5

If x element is in Group 2 and period 3, how many electrons will it have in the outermost shell?

Answer 5

2 electrons in the outermost shell, and there are 3 shells.

Question 6

What atom has the electron configuration 2,8,4

a) Silicon 14 , 28
b) Oxygen 8 , 16
c) Hydrogen 1 , 1

Answer 6

Silicon

14 = 2+8+4

Question 7

What are the group 1 metals called?

Answer 7

Alkaline earth metals

Question 8

What is the group 7 called?

Answer 8

Noble Gases

Question 9

Does the reactivity of elements increase as we go down the group 1?

Answer 9

Yes it increases.

Question 10

What is produced when an alkali metal reacts with water?

Metal oxide and hydrogen

Metal hydroxide and water

Metal hydroxide and hydrogen

Answer 10

Metal hydroxide and hydrogen