The Periodic Table: Quiz
Seven questions on periods, groups, families, metals and non-metals, ions and blocks, with explanations.
The Periodic Table: Quiz
7 questions
Period 3 is the third row; group 2 is the second column: magnesium (Mg), an alkaline earth metal.
Show answer
Answer: Magnesium
Period 3 is the third row; group 2 is the second column: magnesium (Mg), an alkaline earth metal.
The halogens (F, Cl, Br, I, At) are in group 17. Group 18 is the noble gases.
Show answer
Answer: Group 17
The halogens (F, Cl, Br, I, At) are in group 17. Group 18 is the noble gases.
Silicon lies on the staircase line and has properties between those of metals and non-metals; it is a semiconductor.
Show answer
Answer: Silicon
Silicon lies on the staircase line and has properties between those of metals and non-metals; it is a semiconductor.
Sulfur has 6 valence electrons and gains 2 to reach the arrangement of argon, forming the sulfide ion S²⁻.
Show answer
Answer: S²⁻
Sulfur has 6 valence electrons and gains 2 to reach the arrangement of argon, forming the sulfide ion S²⁻.
Group 1 elements all have one outer electron, which they lose easily to form 1+ ions. Their masses are quite different and they are in different periods.
Show answer
Answer: They each have one valence electron
Group 1 elements all have one outer electron, which they lose easily to form 1+ ions. Their masses are quite different and they are in different periods.
Groups 3–12 form the d-block (transition metals); iron's outer electrons are filling the 3d subshell.
Show answer
Answer: d-block
Groups 3–12 form the d-block (transition metals); iron's outer electrons are filling the 3d subshell.
Aluminium (group 13) forms Al³⁺; oxygen (group 16) forms O²⁻. 2 × (+3) + 3 × (−2) = 0, so Al₂O₃.
Show answer
Answer: Al₂O₃
Aluminium (group 13) forms Al³⁺; oxygen (group 16) forms O²⁻. 2 × (+3) + 3 × (−2) = 0, so Al₂O₃.