Which best describes nuclear fission?
a. a nucleus spontaneously splits and absorbs energy.
b. two nuclei spontaneously combine and absorb energy.
c. a nucleus collides with a neutron and splits, releasing energy.
d. nuclei combine to form a heavier nucleus, releasing energy.

the answer is c

the answer is c) im 100% sure

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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