Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

This question concerns electronic structures. The electronic structures of five atoms, A, B, C, D and E, are shown. Use these electronic structures to answer the following questions. Each electronic structure may be used once, more than once, or not at all.
(a(i))[1]

State which electronic structure, A, B, C, D or E, shows an atom of an element in Group III of the Periodic Table.

(a(ii))[1]

State which electronic structure, A, B, C, D or E, shows an atom of a monatomic gas.

(a(iii))[1]

State which electronic structure, A, B, C, D or E, shows an atom of carbon.

(a(iv))[1]

State which electronic structure, A, B, C, D or E, shows an atom that has 18 protons.

(a(v))[1]

State which electronic structure, A, B, C, D or E, represents an atom that forms a stable ion with a single negative charge.

(b)[2]

Draw the electronic structure of a silicon atom.

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