SPM Science KSSM Chapter 8

The diagram shows the atom named Lithium. What is the number of protons and the relative atomic mass of the atom?

• Protons - 7; Relative atomic mass - 3

• Protons - 3; Relative atomic mass - 7

• Protons - 3; Relative atomic mass - 10

• Protons - 10; Relative atomic mass - 7

The diagram shows the symbol of the sulphur element. Which of the following is the correct electron configuration for the sulphur element?

• 2.8.4

• 2.8

• 2.6

• 2.8.6

Which of the following is true about the formation of the Q ion from Q atom?

• Q atom is very stable and donates 3 electrons to form the Q ion

• Q atom is unstable, thus donates 3 electrons to form the Q ion.

• Q ion received 3 electrons to form a stable octet arrangement

• Q ion is unstable because it formed from unstable Q atom

Which of the following has a duplet electron arrangement?

• 
• 
• 
• 

Isotope K is used in the treatment of cancer. What is isotope K?

• Americium-241

• Cobalt-60

• Iodine-131

• Uranium-235

Which of the following isotopes is used in generating electricity?

• Iodine-131

• Sodium-24

• Uranium-235

• Carbon-14

Hypothyroidism is a condition that includes having extremely low metabolism.

What causes hypothyroidism?

Name four conditions that are a result of the under secretion of the oestrogen hormone.

The following is a newspaper clip that drew the attention of both educators and parents.

"Statistics show that the number of teenagers who receive psychiatric help is on the rise due to a number of factors"

Suggest two reasons for the situation above.

What is your opinion on the negative perception the public has towards psychiatric patients?