The nuclear fuel in the sun is
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Which among the following planets is smaller than the Earth
Onplanet Earth, there is no centrifugal force at the
A bond formed by sharing of electrons between atoms of the element is called
A bond formed by the transfer of electrons betwwen atoms of the elements is called
Formation of anions occurs by
Formation of cation occurs by
A particle which is four times in mass and two times in charge that of proton is