Question

${}_{88}^{226}Ra{\to }_{86}^{222}Rn+Z$
A nuclear fission reaction of radium atom shown in the equation above. Identify which of the following quantities represents Z?

• A. Alpha
• B. Beta
• C. Gamma
• D. Neutron
• E. Neutrino

Answer 1

The correct option is A Alpha

We know that a nuclear reaction should always be balanced by both sides, if we balance the equation:

${}_{88}R{a}^{226}{⟶}_{86Rn}^{222}{+}_{2}H{e}^4$

It means, $Z{=}_{2}H{e}^4=\alpha -particle$