How do the following properties change down Group 17 of the periodic table?

Which ion has the largest radius?

A.  Na⁺

B.  Mg²⁺

C.  P³⁻

D.  S²⁻

Which property increases down group 17, the halogens?

A. Electron affinity

B. Boiling point

C. First ionization energy

D. Reactivity

X, Y and Z represent the successive elements, Ne, Na and Mg, but not necessarily in that order.

What is the order of increasing atomic number?

A.     X < Y < Z

B.     X < Z < Y

C.     Y < Z < X

D.     Y < X < Z

What is the order of decreasing ionic radius?

A.     S²⁻ > Cl⁻ > Al³⁺ > Mg²⁺

B.     Cl⁻ > S²⁻ > Al³⁺ > Mg²⁺

C.     S²⁻ > Cl⁻ > Mg²⁺ > Al³⁺

D.     Mg²⁺ > Al³⁺ > Cl⁻ > S²⁻

Which are the most reactive elements of the alkali metals and halogens?

A.  Lithium and fluorine

B.  Lithium and iodine

C.  Caesium and fluorine

D.  Caesium and iodine

Which electron configuration is that of a transition metal atom in the ground state?

A. [Ne]3s²3p⁶4s¹

B. [Ar]3d⁹

C. 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p²

D. [Ar]4s¹3d⁵

Which describes an atom of bismuth, Bi (Z = 83)?

Which correctly describes the reaction between potassium and excess water?

A. The reaction is endothermic.

B. The final products of the reaction are potassium oxide and hydrogen.

C. The final products of the reaction are potassium hydroxide and hydrogen.

D. The final pH of the solution is 7.

Which series represents atoms in order of decreasing atomic radius?

A. N > C > Be > Mg

B. Mg > N > C > Be

C. Be > C > N > Mg

D. Mg > Be > C > N

What is the correct order for increasing first ionization energy?

A.  Na < Mg < Al

B.  Na < Al < Mg

C.  Al < Mg < Na

D.  Al < Na < Mg

What is the correct trend going down groups 1 and 17?

A. Melting points increase

B. Boiling points decrease

C. Electronegativities increase

D. Ionization energies decrease