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


Question 2. 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 slightly heavier.
It would have a different taste.
It would be radioactive.
It would be a different colour.


Question 3. Which number tells us which isotope we are dealing with?

The mass number.
The proton number.
The electron number.
The atomic number.


Question 4. 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?

18.
3.
20.
17.


Question 5. How is a deuterium atom different from a hydrogen atom?

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


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