A) each of the following represents a ground state electron configuration of a n

Question

A) each of the following represents a ground state electron configuration of a neutral atom. predict which configuration belongs to the atomic with the lowest first ionization energy of these choices;
a. 1s2 2s2 2p6
b. 1s2 2s2 2p4
c. 1s2 2s2 2p6 3s2
d. 1s2 2s2 2p6 3s1
e. 1s2 2s2 2p5

B) The energy required to convert Na to Na3+ is which of the following?
a. the second ionization energy
b. the third ionization energy
c. the fourth ionization energy
d. sum of first and second ionization energies
e. sum of first second and third ionization energies

C) true or false
a. the third ionization energy of Mg is greater than third ionization energy of Al______
b. metals tend to have relatively low first ionization energies_______
c. the noble gasses have the greatest (most negative ) electron affinities on the periodic table_______

D) Which of the following processes is expected to release the most amount of energy in the formation of MgO from Mg metal and O2 gas?
a. O2(g)2 O (g)
b. O (g) + 2e- O2-
c. Mg (s)Mg (g)
d. Mg (g)Mg2+(g)+2e-
e. Mg2+(g)+O2-(g) MgO (s)

Explanation / Answer

A d

B e

C a true   b true     c false

D e

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