Examining Atomic Structure (2.2.2)

Question 1

• Isotopes of an element have the same number of protons, but different numbers of neutrons.

Answer 1

• Isotopes of an element have the same number of protons, but different numbers of neutrons.

Question 2

• The atomic mass unit (amu) is a convenient unit for describing the masses of atoms.

Answer 2

• The atomic mass unit (amu) is a convenient unit for describing the masses of atoms.

Question 3

• The relative atomic mass expresses the weighted average of the masses of all naturally occurring isotopes of an element.

Answer 3

• The relative atomic mass expresses the weighted average of the masses of all naturally occurring isotopes of an element.

Question 4

• The difference in mass between a nucleus and its constituent nucleons is released as the binding energy, E = mc^2.

Answer 4

• The difference in mass between a nucleus and its constituent nucleons is released as the binding energy, E = mc^2 .