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Screening effect influences A) atomic...

Screening effect influences
A) atomic radius
B) Ionisation enthalpy
C) electron gain enthalpy

Text Solution

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(a) `Mg(s) +1//2 O_(2) rarr MgO(exo)`
(b) `MgO(s) rarrMg^(2+) (g) +O^(2-) (g) `(endo)
(c) Mg(s) `rarr ` Mg (g) (endo), `1//2O_(2) rarr `O (g) (endo)
(d) Mg `rarr Mg^(+) +e^(-) ` (endo)
(e) `Mg^(+) (g) rarr Mg^(2+) +e^(-) ` (endo)
(f) O(g) `+ e^(-) rarr O^(-)`
(g) `O^(-) +e^(-) rarr O^(2-)`
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