Which subatomic particle determines the identity of an atom?

A. Neutron

B. Electron

C. Proton

D. Positron

Which of the following statements about isotopes is true?

A. Isotopes of an element have different numbers of protons.

B. Isotopes of an element have different atomic numbers.

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

D. Isotopes of an element have different electron configurations.

Which subatomic particle has a negative charge?

A. Proton

B. Neutron

C. Electron

D. Positron

In which field are isotopes commonly used to determine the age of ancient artefacts?

A. Geology

B. Astronomy

C. Archaeology

D. Biology

The atomic number of an element represents the number of:

A. Neutrons in the nucleus

B. Electrons in the atom

C. Protons in the nucleus

D. Isotopes of the element

a) Describe the charge, mass, and location of protons within an atom. [2]

b) How does the number of protons in an atom determine its atomic number? [2]

a) Define isotopes and provide an example. [2]

b) How do isotopes of the same element differ in terms of their atomic and mass numbers? [2]

a) Explain the significance of isotopes in the field of medicine. [2]

b) How do isotopes play a crucial role in archaeological studies? [2]

a) Describe the role of neutrons in determining the mass number of an atom. [2]

b) If an atom has 15 protons and 16 neutrons, what is its atomic and mass number? [2]

c) How does the number of neutrons affect the stability of an atom? [3]

a) Define the term "isotope" in relation to both atomic and mass numbers. [3]

b) Give an example of an element that has multiple isotopes and state their mass numbers. [2]

c) How do isotopes of the same element differ chemically? [2]