Question

question 9 of 25
during which type of change can an atom of one element become an atom of a different element?
a. phase
b. nuclear
c. physical
d. chemical

Explanation:

• Phase change: Only changes the state (solid, liquid, gas) of a substance. Atoms remain the same.
• Nuclear change: Involves changes in the nucleus of an atom. Can result in one element becoming another. For example, in radioactive decay or nuclear reactions.
• Physical change: Changes like cutting, melting. Atoms of the element are unchanged.
• Chemical change: Rearranges atoms (in compounds or molecules). Atoms of elements themselves do not change identity.

Answer:

B. Nuclear