chem review quiz 6

which of the following three sets consist of atoms or ions with the same electron configuration in the ground state? 1. o2-, ne, mg 2+ 2. ni, cu+, zn2+ 3. hg, ti+ and pb2+

1 and 3

list the elements Na, Ca, Rb, Cl, He in order of decreasing first ionization energy

He>Cl>Ca>Na>Rb

which of the above pictures best represents a solid ionic compound

C

which sphere represents the monoatomic cation

C

which element indicated by letter on the periodic table above, has a 2+ ion with the electron configuration [Ar] 3d10

C (answer choice not element)

of the following, which element has the highest first ionization energy C Si P N

N

calculate the energy change for the formation of CaF2 from its elements in their standard states and the following information

-1214 kJ/mol

calculate the energy change in kJ/mol for the reaction Li+ + F- --> Li + F using the following information

-192 kJ/mol

calculate the energy change for the formation of LiCl from its elements in their standard states and the following tabulated information:

-400.3 kJ/mol

which sphere represents the metal atom

A

which sphere most likely represents the Mg2+ ion?

A, r= 72 pm

which period 3 element has successive first through seventh ionization energies (kJ/mol) of Ei1= 578; Ei2= 1,817; Ei3= 2,745; Ei4= 11,575; Ei5= 14,830; Ei6=18,376; Ei7= 23,293 Al Cl S Mg

Al

which ionization process requires the most energy

Al3+ --> Al4+ + e-

which element has the most favorable (most negative) electron affinity N Li C B

C

atoms of which element indicated by letter on the periodic table above would be expected to have the lowest first ionization energy

B

which element indicated by letter on the periodic table above has a 3+ ion with the electron configuration [Kr] 4d5

B (answer choice not element)

which sphere most likely represents the Na+ ion?

B, r= 102 pm

atoms of which element indicated by letter on the periodic table above would be expected to have the highest first ionization energy

C

atoms of which element indicated by letter on the periodic table above would be expected to have the most negative value of Eea

C

which sphere most likely represents the F- ion?

C, r= 133 pm

consider the following ground state electron configuration: 1s2 2s2 2p4. which of the ions has this ground-state electron configuration?

C2-

in the reaction of sodium metal with chlorine gas which of the following processes releases energy

Cl + e- --> Cl-

which of the above pictures best represents a gaseous covalent compound

D

which sphere represents the monoatomic anion

D

which element indicated by letter on the periodic table above has a 1+ ion with the electron configuration [Xe] 6s2 4f14 5d10

D (answer choice not element)

Which ion has the smallest ionic radius? I- Br- Cl- F-

F-

which ion has the smallest ionic radius li+ k+ Na+ Rb+

Li+

arrange these ions: N3-, O2-, Mg2+, Na+, F- in order of increasing ionic radius, starting with the smallest

Mg2+, Na+, F-, O2-, N3-

which element has the most favorable (most negative) electron affinity S N Ca Ne

S

what is the ground-state electron configuration for the ion Cu2+

[Ar]3d9

which electron affinity process would liberate the most energy?

[He] 2s2 2p2 + e- --> [He] 2s2 2p3

which of the following represents the change in electronic configuration that is associated with the second ionization energy of magnesium

[Ne] 3s1 --> [Ne] + e-

which of the following atoms with the specified electronic configurations would have the lowest first ionization energy

[Xe] 6s1

what is the ground state electron configuration for the ion Hg2+

[Xe]4f14 5d10

which ion has the same electron configuration as Kr

all of these

what is the general trend in ionization energy and electron affinity values

both increase as one traverses a period from left to right and both decrease as one descends a group

of the following which element has the highest first ionization energy iodine chlorine bromine fluorine

fluorine

of the following which element has the highest first ionization energy krypton argon helium neon

helium

an element that has the valence electron configuration 3s2 3p3 belongs to which period and group

period 3; group 5a

which salt has the lowest lattice energy

picture A

which salt has the highest lattice energy

picture D