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The periodic table – practice for Years 8–9

Sample questions on The periodic table with the right answer and a worked solution, from easy to hard. In the Pickles Academy app a child gets new questions of the same kind every time, so they can't just learn the answers by heart.

Subject
Chemistry
Year
Years 8–9
Curriculum area
Atoms and elements

Question types: Finding your way round the periodic table

Rule: The periodic table

Elements are in order of atomic number. The rows are periods, the columns groups.

Group 1: alkali metals (Li, Na, K), group 2: alkaline earth metals (Mg, Ca, Ba).

Group 17: halogens (F, Cl, Br, I), group 18: noble gases (He, Ne, Ar).

Example: Ar is in period 3 and group 18: it is a noble gas.

Watch out: Hydrogen sits at the top of the first column, but it is not an alkali metal: it is a gas.

Sample questions

  1. Question 1 Easy

    Which period is the marked element in?

    1213141516171812341H2He3Li4Be5B6C7N8O9F10Ne11Na12Mg13Al14Si15P16S17Cl18Ar19K20Ca31Ga32Ge33As34Se35Br36Kr
    Show the solution
    Answer: 2

    How it works: N (nitrogen): period 2, group 15.

  2. Question 2 Normal

    Which family of elements does the marked element F belong to?

    1213141516171812341H2He3Li4Be5B6C7N8O9F10Ne11Na12Mg13Al14Si15P16S17Cl18Ar19K20Ca31Ga32Ge33As34Se35Br36Kr
    1. A) transition metals
    2. B) alkaline earth metals
    3. C) alkali metals
    4. D) noble gases
    5. E) halogens
    Show the solution
    Answer: E) halogens

    How it works: Correct: halogens (group 17).

  3. Question 3 Hard

    Which element is marked in the table? The symbols are hidden.

    121314151617181234?
    1. A) arsenic (As)
    2. B) nitrogen (N)
    3. C) neon (Ne)
    4. D) fluorine (F)
    5. E) carbon (C)
    Show the solution
    Answer: B) nitrogen (N)

    How it works: Correct: nitrogen (N), period 2, group 15.

Related topics

All Chemistry topics

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