Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

The electronic arrangements of five atoms, A, B, C, D and E, are shown. Answer the questions that follow about these atoms. Each atom can be chosen once, more than once, or not chosen at all.
(a(i))[1]

Of A, B, C, D and E, which atom is in Group VIII of the Periodic Table?

(a(ii))[1]

Of A, B, C, D and E, which one is a chlorine atom?

(a(iii))[1]

Which of A, B, C, D and E has 17 protons in its nucleus?

(a(iv))[1]

Of A, B, C, D and E, which atom is an atom of an element in the same period as carbon?

(a(v))[1]

Of A, B, C, D and E, which atom is an atom of a metal?

(b)[3]

Fill in the table to give the numbers of electrons, neutrons and protons in the magnesium atom and calcium ion shown.

Worked solution & mark scheme

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