Uranium is an element that is often used in nuclear power plants. Uranium atoms are very large, and the substance can be dangerous if it is not carefully contained. What is true about all uranium atoms?
Answer
A
They each have the same number of neutrons.
B
They each have the same number of protons.
C
They each have the same number of neutral particles.
D
They each have the same number of nuclear particles.
Explanation
An element is defined by the number of protons in its atoms. Every uranium atom has 92 protons, though uranium atoms can have different numbers of neutrons in different isotopes. Therefore, the true statement is that they each have the same number of protons.
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