Which statement about fusion is correct? fusion creates radioactive waste. fusion is the combining of small nuclei under extreme heat and pressure. fusion is the splitting of atoms under extreme heat and pressure. fusion is the splitting of a nucleus when it is bombarded by neutrons. nextreset

Option (b) is the correct answer.

Explanation:

Fusion is a nuclear process in which two or more atomic nuclei combine together to form a bigger atomic nuclei.

Thus, the statement fusion is the combining of small nuclei under extreme heat and pressure is correct.

During this process large amount of heat is released.

For example,  the energy of sun is due to the fusion processes occurring inside it.

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.