Periodic TableAtomic Radius Trend36Choose the best answerDown a group, atomic radius generally:AIncreasesBRemains constantCDecreasesDBecomes zero Like 0 Discuss 0Share
Periodic TableIsoelectronic Species and Ionic Radius37Choose the best answerWhy is the ionic radius of S²⁻ larger than that of K⁺?AS²⁻ contains more electrons than K⁺.BK⁺ contains more occupied electron shells.CS²⁻ and K⁺ are isoelectronic, but S²⁻ has a lower nuclear charge.DS²⁻ has a higher nuclear charge than K⁺. Like 0 Discuss 0Share
Periodic TableIonization Energy Trend38Choose the best answerWhich is the correct decreasing order of first ionization energy in Period 2?ANe > F > O > N > C > Be > B > LiBNe > F > N > O > C > Be > B > LiCF > Ne > N > O > C > B > Be > LiDNe > F > N > C > O > Be > B > Li Like 0 Discuss 0Share
Periodic TableGroup 13 Electronegativity Trend39Choose the best answerThe electronegativity trend in Group 13 becomes irregular below aluminium mainly because of:APoor shielding by inner d- and f-electronsBA decrease in nuclear chargeCRemoval of occupied electron shellsDPerfect shielding by inner electrons Like 4 Discuss 0Share1
Periodic TableIonization Energy40Choose the best answerWhich equation correctly represents the first ionization of magnesium?AMg(s) → Mg⁺(s) + e⁻BMg(g) → Mg⁺(g) + e⁻CMg⁺(g) → Mg²⁺(g) + e⁻DMg(g) + e⁻ → Mg⁻(g) Like 0 Discuss 0Share