______ is a representative element Ti Mo Tl Cr U

What would be the outer electron configuration of group IVA (C, Si, Ge,...)? 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

Choose the term that best describes all members of this series of elements: V, Cr, Fe, Co, Ni metalloids 2.d-transition elements 3.alkaline earth metals 4.alkali metals 5.representative elements

Which element has the largest atomic radius? Mo 2.Mg 3.Ba 4.Cl 5.At

Which element has the lowest first ionization energy? Al 2.Si 3.P 4.S 5.Cl

Which of the following elements has the most negative electron affinity? Ge 2.I 3.Br 4.Se 5.K

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 I, II, and III 2.II and IV 3.III and IV 4.IV and V 5.I, IV, and V

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? 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

Which ion has the largest radius? P 3- 2.S 2- 3.Cl - 4.N 3- 5.F -

Which ion has the smallest radius? K + 2.Rb + 3.Ca2 + 4.Sr2 + 5.Ba2 +

Which one of the following properties is based on the attraction of an atom for electrons in a chemical bond? binding energy 2.mass defect 3.electron affinity 4.ionization energy 5.electronegativity

Which element has the lowest electronegativity? Be 2.Ba 3.Ga 4.Tl 5.I

Which of these comparisons of electronegativities is (are) correct? I. O > N II. S > P III. Rb > Li IV. Br > Cl I and IV 2.I and III 3.I and II 4.II and III 5.III and IV

Which one of the following hydrides is acidic? RbH 2.SrH 2 3.H 2 S 4.NaH 5.NH 3

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 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

The most common oxidation states of nonmetals do not include _______ 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

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? SeO 2.SeO 2 3.SeO 3 4.Se 2 O 3 5.Se 3 O 4

The acid for which N 2 O 3 can be considered the anhydride is __________ H 2 N 2 O 2 2.HNO 2 3.HNO 3 4.H 2 NO 3 5.HN 3

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?

Write the balanced formula unit equation for the reaction of tetraphosphorus decoxide with excess water. What is the sum of the coefficients?