Question

1. use the frayer model to define \isotopes\. click the image for an editable word version. (4 marks)

Explanation:

Definition: Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons.
Facts/Characteristics: They have the same atomic number but different mass numbers. Their chemical properties are similar due to the same electron - configuration, but physical properties can vary.
Examples: Carbon - 12, Carbon - 13, and Carbon - 14 are isotopes of carbon. Hydrogen has three isotopes: protium (Hydrogen - 1), deuterium (Hydrogen - 2), and tritium (Hydrogen - 3).
Non - examples: Atoms of different elements like oxygen and nitrogen are not isotopes of each other since they have different numbers of protons.

Answer:

Definition	Facts/Characteristics
Examples	Non - examples
Carbon - 12, Carbon - 13, Carbon - 14; protium, deuterium, tritium	Oxygen and nitrogen atoms