MCQ
The expression $Ze$ gives :
- AThe charge of $\alpha -$ particle
- BThe charge on an atom
- ✓The charge on the nucleus of atomic number $Z$
- DThe kinetic energy of an $\alpha -$ particle
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${H_{2(g)}} + {I_{2(g)}}$ $\rightleftharpoons$ $2H{I_{(g)}}$