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 carbon-14 atom different from a normal carbon-12 atom?

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


Question 2. A chlorine atom contains 17 protons and 17 electrons. About 75% of chlorine atoms are the chlorine-35 isotope. How many neutrons does one of these atoms contain?

1.
18.
17.
20.


Question 3. 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 4. How is a deuterium atom different from a hydrogen atom?

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


Question 5. How are isotopes of an element similar to each other?

They have the same number of neutrons.
They have the same number of protons.
They have no similarities.
They have the same mass number.


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