Question

Which of the following symbols represents half-life?

Answer 1

The answer is B.) T /12

Answer 2

Answer:
`t_(1)/(2)`

Explanation:-

1. Activation energy is the extra energy required by the reactants to cross the energy barrier and convert to products. It is designated by the symbol
`E_a`.

2. Half life is the time taken by a reactant to reduce to its original concentration. It is designated by the symbol
`t_(1)/(2)`.

3. Alpha decay: In this process, alpha particles is emitted when a heavier nuclei decays into lighter nuclei. The alpha particle released has a charge of +2 units.

`_Z^A\textrm{X}\rightarrow _(Z-2)^(A-4)+_2^4\alpha`

4. Beta-decay: In this process, a neutron gets converted into a proton and an electron releasing a beta-particle. The beta particle released carries a charge of -1 units.

`_Z^A\textrm{X}\rightarrow _(Z+1)^A\textrm{Y}+_(-1)^0\beta`