2
QuizMultiple Choice

Nuclear Processes — Test

Question 2 • Physics in the Universe

Which statements are supported by the graph? Choose two correct answers.

Answer
A
Nuclei that have 90 or greater protons are always radioactive.
B
Atoms that have less than 10 protons do not need neutrons to be stable.
C
For large atoms, more neutrons than protons are needed to be stable.
D
Atoms must have equal numbers of protons and neutrons to be stable.
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