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 uranium-235 atom different from a uranium-238 atom?

It has three extra neutrons.
It has three less neutrons.
It has three extra protons.
It has three less protons.


Question 2. How is a carbon-14 atom different from a normal carbon-12 atom?

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


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

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


Question 4. 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 the same mass number.
They have no similarities.


Question 5. Which number tells us which isotope we are dealing with?

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


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