white like me
what is the identity of the element x in the following ions? what are the likely ground-state electron configurations of the following anions N3-: 1s2 2s2 2p6 Se2-: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 5s2 4d4
Identify the element whose 2+ ions has the ground state electron configuration [Ar] 3d^10
Zinc
Which has the smaller second ionization energy, K or Ca?
CaThree atoms have the following electron configuration.
a) 1s2 2s2 2p6 3s2 3p3
b) 1s2 2s2 2p6 3s2 3p6
c) 1s2 2s2 2p6 3s2 3p6 4s2
Which of the three has the largest Ei2 and the smallest Ei7?
B largest Ei2
C smallest Ei7
Which element in each of the following sets has the smallest first ionization energy, which has the largest?1) Li(L), Ba, K(S)2) B(S), Be, Cl(L)3) Ca(s), C, Cl(L)
Order the following compounds according to their expected lattice energies:
LiClKClKBrMgCl2
MgCl2>LiCl>KCl>KBr Ranked by Smallest molecules have the largest lattice energy. calculate the overall energy change in kilojoules per mole for the formation of CsF(s) from its elements using the following data: Eea for F(g) = -328 kj/mol, Ei1 for Cs(g) = +375.7 kj/mol, heat of sublimation for Cs(s) = +76.1 kj/mol, bond dissociation energy for F2(g) = +158 kj/mol, lattice energy for CsF(s) = +740 kj/mol which of the following substances are largely ionic and which are covalent
HF ENF = 4.0; ENH = 2.1: DEN = 1.9 HF is polar covalent.
(b) HI ENI = 2.5; ENH = 2.1: DEN = 0.4 HI is polar covalent.
(c) PdCl2 ENCl = 3.0; ENPd = 2.2: DEN = 0.8 PdCl2 is polar covalent.
(d) BBr3 ENBr = 2.8; ENB = 2.0: DEN = 0.8 BBr3 is polar covalent.
(e) NaOH Na+-OH- is ionic
(f) CH3Li CH3Li is polar covalent. Use the electronegativity data in Figure 7.4 to predict which bond in each of the following pairs is more polar.
(a) C-H or C-Cl Respective DEN's: 0.4 & 0.5 C-Cl is more polar(b) Si-Li or Si-Cl Respective DEN's: 0.8 & 1.2 Si-Cl is more polar.
(c) N-Cl or N-Mg
Identify the element whose 2+ ions has the ground state electron configuration [Ar] 3d^10
Zinc
Which has the smaller second ionization energy, K or Ca?
CaThree atoms have the following electron configuration.
a) 1s2 2s2 2p6 3s2 3p3
b) 1s2 2s2 2p6 3s2 3p6
c) 1s2 2s2 2p6 3s2 3p6 4s2
Which of the three has the largest Ei2 and the smallest Ei7?
B largest Ei2
C smallest Ei7
Which element in each of the following sets has the smallest first ionization energy, which has the largest?1) Li(L), Ba, K(S)2) B(S), Be, Cl(L)3) Ca(s), C, Cl(L)
Order the following compounds according to their expected lattice energies:
LiClKClKBrMgCl2
MgCl2>LiCl>KCl>KBr Ranked by Smallest molecules have the largest lattice energy. calculate the overall energy change in kilojoules per mole for the formation of CsF(s) from its elements using the following data: Eea for F(g) = -328 kj/mol, Ei1 for Cs(g) = +375.7 kj/mol, heat of sublimation for Cs(s) = +76.1 kj/mol, bond dissociation energy for F2(g) = +158 kj/mol, lattice energy for CsF(s) = +740 kj/mol which of the following substances are largely ionic and which are covalent
HF ENF = 4.0; ENH = 2.1: DEN = 1.9 HF is polar covalent.
(b) HI ENI = 2.5; ENH = 2.1: DEN = 0.4 HI is polar covalent.
(c) PdCl2 ENCl = 3.0; ENPd = 2.2: DEN = 0.8 PdCl2 is polar covalent.
(d) BBr3 ENBr = 2.8; ENB = 2.0: DEN = 0.8 BBr3 is polar covalent.
(e) NaOH Na+-OH- is ionic
(f) CH3Li CH3Li is polar covalent. Use the electronegativity data in Figure 7.4 to predict which bond in each of the following pairs is more polar.
(a) C-H or C-Cl Respective DEN's: 0.4 & 0.5 C-Cl is more polar(b) Si-Li or Si-Cl Respective DEN's: 0.8 & 1.2 Si-Cl is more polar.
(c) N-Cl or N-Mg