I am not sure bout this question sry
The best and most correct answer among the choices provided by the question is the first choice "the powder catches fire"
Chemical change<span> is any </span>change<span> that results in the formation of new </span>chemical <span>substances. At the molecular level, </span>chemical change<span> involves making or breaking of bonds between atoms. These </span>changes<span> are </span>chemical<span>: iron rusting (iron oxide forms) gasoline burning (water vapor and carbon dioxide form)
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Answer:
fluorine
Explanation:
I used the number of electrons to determine it.
Answer:
the atom to become unstable and rip apart.
Explanation:
We define radioactivity as the spontaneous disintegration of atoms. It could occur naturally or artificially.
Artificial radioactivity occurs either by the process of nuclear fusion (combination of two light nuclei) or nuclear fission(bombarding of a heavy nucleus with a small particle such as a neutron).
When a heavy nucleus is bombarded with a neutron, the nucleus becomes unstable and rips apart producing a daughter nucleus/nuclei and more neutrons hence the process continues. This is otherwise called a chain reaction.
