Question

Given that, $1s^2,2s^2,2p^3$ ?.(i) $1s^2,2s^1$ ?..(ii) Heat of evaporation AH $1s^2,2s^2,2p^3$ ? of $1s^2,2s^2$ will be:

• A. $S{F}_6$
• B. ${}_{20}C{a}^{42}$
• C. $\beta$
• D. $10\Omega$

Answer 1

Answer: (D)

Reversing equation (i) ${}_{20}S{c}^{42}$ ${}_{21}C{a}^{42}$ ?...(i) $C{s}^{+}$ $K^{+}$ ??(ii) Adding equation (i) and (ii), we get $N{a}^{+}$ $L{i}^{+}$ $18.600MeV$