Test 1: Atomic Structure, Atomic Nucleus, Isotopes and Radioactivity

Question 1

What did Rutherford's alpha particle scattering experiment reveal about the structure of the atom?

• AElectrons are distributed evenly throughout the atom
• BProtons and electrons are located in the nucleus
• CAtoms are indivisible and indestructible
• DThe nucleus is small, dense, and positively charged

Question 2

The atomic number of an element represents:

• Anumber of neutrons in the nucleus
• Bnumber of protons in the nucleus
• Ctotal number of protons and neutrons
• Dnumber of electrons and neutrons

Question 3

Which type of radiation is positively charged and consists of two protons and two neutrons?

• AAlpha (α)
• BBeta (β)
• CGamma (γ)
• DNeutron emission

Question 4

The process by which an unstable nucleus emits radiation and transforms into a more stable nucleus is called:

• Anuclear fusion
• Bnuclear fission
• Cradioactive decay
• Disotopic exchange

Question 5

Atomic physics deals with the study of:

• Athe structure of atoms and their constituents
• Bonly nuclear power plants
• Conly stars
• Donly radio waves