Snapquiz - Isotopes

This is the Snapquiz on Isotopes. Click here or use the embedded video if you haven't watched the lesson yet.


Question 1. How is a tritium atom different from a hydrogen atom?

It has one extra neutron.
It has two extra protons.
It has two extra neutrons.
It has one extra proton.


Question 2. How are isotopes of an element different from each other?

They have different numbers of electrons.
They have different numbers of protons.
They have different atomic numbers.
They have different numbers of neutrons.


Question 3. How is a carbon-14 atom different from a normal carbon-12 atom?

It has one extra neutron.
It has two extra neutrons.
It has two extra protons.
It has one extra proton.


Question 4. How would a glass of water made with hydrogen-2 atoms be different to a glass of water made with hydrogen-1 atoms?

It would be a different colour.
It would have a different taste.
It would be slightly heavier.
It would be radioactive.


Question 5. A chlorine atom contains 17 protons and 17 electrons. About 25% of chlorine atoms are the chlorine-37 isotope. How many neutrons does one of these atoms contain?

17.
20.
18.
3.


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