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Some examples from this set of practice questions
1.
What is an isotope?
Answer: Isotopes are atoms of the same element that have same number of protons and electrons but different number of neutrons.
2.
What are the masses of the subatomic particles of an atom?(proton, electron & neutron)
Answer: The masses of the subatomic particles are as follows: proton = 1 electron = 1/1840 neutron = 1
3.
What is relative isotopic mass?
Answer: It is the mass of an atom of an isotope compared to the mass of carbon-12 atom
4.
What is relative molecular mass?
Answer: It is the average mass of one molecule of that element or compound compared to 1/12th of the mass of one carbon-12 atom.
5.
What is relative formula mass?
Answer: It is basically the relative molecular mass of ionic compounds.
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