MCQ
Identify the property which does not reflect the periodicity of the elements.
- ABonding behaviour
- BElectronegativity
- CIonization potential
- ✓Neutron $-$ proton ratio
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$N_2(g) + 3H_2(g) \to 2NH_3(g)$ is
$-\,92.38\,KJ$ at $298\,K$ . The internal energy change $\Delta U$ at $298\,K$ is.....$KJ$