______ is a representative element.
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1. 22
Ti 2. 42 Mo 3. 81 Tl 4. 24 Cr 5. 92 U
Slide 2
What would be the outer electron configuration of group IVA (C,
Si, Ge,...)? 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.ns
2 nd 2 np 0 2.ns 2 np 4 3.ns 0 np 4 4.ns 1 np 3 5.ns 2 np 2
Slide 3
Choose the term that best describes all members of this series
of elements: V, Cr, Fe, Co, Ni 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950
1.metalloids 2.d-transition elements 3.alkaline earth metals
4.alkali metals 5.representative elements
Slide 4
Which element has the largest atomic radius?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.Mo
2.Mg 3.Ba 4.Cl 5.At
Slide 5
Which element has the lowest first ionization energy?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.Al
2.Si 3.P 4.S 5.Cl
Slide 6
Which of the following elements has the most negative electron
affinity? 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.Ge
2.I 3.Br 4.Se 5.K
Slide 7
Which response includes all of the following that are
isoelectronic with Kr, and no other species? I. S 2- II. Ar III. K
+ IV. Sr 2+ V. Br - 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.I,
II, and III 2.II and IV 3.III and IV 4.IV and V 5.I, IV, and V
Slide 8
Consider the following atoms and ions: Na, Na +, Mg, Mg 2+, O,
O 2-, F, F -. Which one of the following groups includes only
isoelectronic species? 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.Na,
Mg, O, F 2.Na, Na +, Mg, Mg 2+ 3.O, O 2-, F, F - 4.Na +, Mg 2+,
O2-, F- 5.none of these
Slide 9
Which ion has the largest radius?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.P
3- 2.S 2- 3.Cl - 4.N 3- 5.F -
Slide 10
Which ion has the smallest radius?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.K +
2.Rb + 3.Ca2 + 4.Sr2 + 5.Ba2 +
Slide 11
Which one of the following properties is based on the
attraction of an atom for electrons in a chemical bond?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950
1.binding energy 2.mass defect 3.electron affinity 4.ionization
energy 5.electronegativity
Slide 12
Which element has the lowest electronegativity?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.Be
2.Ba 3.Ga 4.Tl 5.I
Slide 13
Which of these comparisons of electronegativities is (are)
correct? I. O > N II. S > P III. Rb > Li IV. Br > Cl
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.I
and IV 2.I and III 3.I and II 4.II and III 5.III and IV
Slide 14
Which one of the following hydrides is acidic?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.RbH
2.SrH 2 3.H 2 S 4.NaH 5.NH 3
Slide 15
The principal product of the reaction of iron, Fe, with a
limited amount of oxygen is I, while with an excess of oxygen it is
II. I / II 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.Fe
3 O 2 / FeO 2.Fe 2 O 3 / FeO 3.FeO / Fe 3 O 2 4.FeO / Fe 3 O 4
5.FeO / Fe 2 O 3
Slide 16
The most common oxidation states of nonmetals do not include
_______. 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950
1.zero 2.the periodic group number of the nonmetal 3.the periodic
group number of the nonmetal minus two 4.the periodic group number
of the nonmetal minus eight 5.the negative of the periodic group
number of the nonmetal
Slide 17
The most common oxidation states of selenium are +4 and +6 in
molecular oxides. What is the formula for the product of the
reaction of selenium with a limited amount of oxygen?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.SeO
2.SeO 2 3.SeO 3 4.Se 2 O 3 5.Se 3 O 4
Slide 18
The acid for which N 2 O 3 can be considered the anhydride is
__________. 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.H 2
N 2 O 2 2.HNO 2 3.HNO 3 4.H 2 NO 3 5.HN 3
Slide 19
Write the balanced formula unit equation for the reaction of
arsenic, As 4, heated with a limited amount of oxygen (The
molecular formula for the product is twice the empirical formula).
What is the sum of the coefficients?
1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.2
2.8 3.3 4.4 5.5
Slide 20
Write the balanced formula unit equation for the reaction of
tetraphosphorus decoxide with excess water. What is the sum of the
coefficients? 1234567891011121314151617181920
2122232425262728293031323334353637383940 41424344454647484950 1.10
2.7 3.9 4.11 5.5