Question

Please answer 14th and 15th question!! Please!!!!

Answer 1

Answer:

14) 19.53*10^11

15)(b)

Explanation:

14). 1erg = 6.24 *10^11 eV [1J=10^7erg]

but here just observe the change in atomic number

Energy is directly proportional to Z^2

i.e. for Li2+ it is [2.17*10^11*(3)^2]ergs

15) energy of electron is inversely proportional to n^2