Question : What are the components of the nucleus of an atom?

Option 1: Only protons

Option 2: Protons and neutrons

Option 3: Neutrons and electrons

Option 4: Only neutrons

Question : In nuclear reactors, moderators are used to?

Option 1: Accelerate neutrons

Option 2: Absorb the neutrons

Option 3: Slow down the neutrons.

Option 4: Generate neutrons

Question : The members of a family of an element that all have the same number of protons but different numbers of neutrons are called:

Option 1: isotopes

Option 2: isotones

Option 3: isobars

Option 4: Isophors

Question : ______ are also known as heat waves.

Option 1: Infrared waves

Option 2: Gamma rays

Option 3: Light waves

Option 4: X-rays

Question : Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength.

Option 1: Microwave, infrared, visible, X-rays

Option 2: X-rays, visible, infrared, Microwave

Option 3: Visible, infrared, microwave, X-ray

Option 4: X-rays, infrared, visible, microwave