Chemistry 5070 · O Level · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

Fig. 1.1 presents the electronic configurations of five atoms, A, B, C, D and E. Any one of these configurations may be used once, more than once or not used at all.
(a(i))[1]

State which of A, B, C, D or E is the electronic configuration of a noble gas atom.

(a(ii))[1]

State which electronic configuration, A, B, C, D or E, is the atom of an element that is used for food containers because it resists corrosion.

(a(iii))[1]

State which electronic configuration, A, B, C, D or E, represents an atom of an element in Group V of the Periodic Table.

(a(iv))[1]

State which electronic configuration, A, B, C, D or E, represents an atom of an element from Period 3 of the Periodic Table.

(a(v))[1]

State which electronic configuration, A, B, C, D or E, represents an atom that makes a stable ion carrying a charge of $2-$.

(b)[2]

Deduce how many protons and neutrons are present in the vanadium atom shown, $^{51}_{23}\text{V}$.

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