Which missing item would complete this beta decay reaction?

answer: the missing item in the given reaction is

explanation:

beta-minus decay is defined as the decay process in which beta particle is released. it can also be said that a neutron gets converted into a proton and an electron. the beta particle released does not carry any mass but carries a charge of -1 units.

the chemical equation representing beta decay process is:

for the given chemical reaction:

the missing item in the given reaction is

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1. they vary with a higher number because boiling is way hotter than melting