An atom of an element contains 66 electrons. what element is it?

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Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?