Multiple ChoiceWhich of the following period 3 elements is least likely to react naturally under standard conditions?31views
Multiple ChoiceWhich group of representative elements contains atoms with three valence electrons in their ground state?20views
Multiple ChoiceWhich of the following elements is an alkali metal with fewer than 10 protons in its nucleus?35views
Multiple ChoiceWhich element in period 4 of the periodic table is the most chemically active non-metal?19views
Multiple ChoiceWhich of the following elements can be found in the second period of the periodic table?21views
Multiple ChoiceWhich of the following lists contains the eight most abundant elements in Earth's crust?28views
Multiple ChoiceWhich of the following lists contains the eight most abundant elements in Earth's crust?18views
Multiple ChoiceWhich of the following is a period 3 nonmetal that is less reactive than sulfur?39views
Multiple ChoiceWhich of the following statements correctly describes a characteristic property of transition metals compared to representative elements?35views