11) Which ion has the smallestradius?
3-12) Select the correct set of quantum numbers (n, l, ml, ms) for the highest energy electron in theground state of potassium, K.A) 4, 0, 1, ½B) -4, 1, 0, ½C) 4, 1, 1, ½D) 4, 1, -1, ½E) 4, 0, 0,
½13) Which one of the following is not a correct formation reaction? (All the reaction equations shownare correct.)
)14) Which of the following elements has the lowestfirst ionization energy?
15) In the electron configuration [Ar] 4s2 3d10 4p4, which are valence electrons?
16) Calcium hydroxide, which reacts with carbon dioxide to form calcium carbonate, was used by theancient Romans as mortar in stone structures. The reaction for this process is Ca(OH)2(s) + CO2(g) →CaCO3(s) + H2O(g) ΔH= –69.1 kJWhat is the enthalpy change if 3.8 mol of calcium carbonate is formed?A) –2.6 x 102kJB) –69 kJC) –73 kJD) –18 kJE) None of these choices is correct.