Question

A nuclear reaction in which two light nuclei combine to form a more massive nuclei is called

Answer 1

[̲̅H̲̅][̲̅e̲̅][̲̅y̲̅] [̲̅M̲̅][̲̅a̲̅][̲̅t̲̅][̲̅e̲̅]

[̲̅h̲̅][̲̅e̲̅][̲̅r̲̅][̲̅e̲̅] [̲̅i̲̅][̲̅s̲̅] [̲̅y̲̅][̲̅o̲̅][̲̅u̲̅][̲̅r̲̅] [̲̅a̲̅][̲̅n̲̅][̲̅s̲̅][̲̅w̲̅][̲̅e̲̅][̲̅r̲̅]
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A nuclear reaction in which two light nuclei combine to form a more massive nuclei is called fusion.

Answer 2

Answer: Nuclear fusion

Explanation:

Nuclear fusion is a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

$4_1^1\textrm{H}\rightarrow _2^4\textrm{He}+2_{+1}^0\textrm{e}+\text{energy}$

Nuclear fission is a process which involves the conversion of a heavier nuclei into two or more small and stable nuclei along with the release of energy.

$_{92}^{235}\textrm{U}+_0^1\textrm{n}\rightarrow _{56}^{143}Ba+_{36}^{90}Kr+3_0^1\textrm{n}$

Thus in the given condition, as the a heavier nuclei curium is being formed from combination of lighter nuclei, this is a nuclear fusion reaction.