January 2018 NY Regents Chemistry Exam
3 Which list represents the classification of the elements nitrogen, neon, magnesium, and silicon, respectively? (1) metal, metalloid, nonmetal, noble gas
(2) nonmetal, noble gas, metal, metalloid
(3) nonmetal, metalloid, noble gas, metal
(4) noble gas, metal, metalloid, nonmetal
Solution: Metals are to the left of the staircase on the Periodic Table and nonmetals are to the right of the staircase. Noble gases are in Group 18. Metalloids are on the staircase on the Periodic Table and include: B, Si, Ge, As, Sb, Te.
Answer: 2
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