Question

the motion of the particles. 4 8. this question is about zinc and compounds of zinc. (a) zinc is a metal. give three physical properties of metals. 1 2 3 3 9. the electronic structures of some atoms and ions are shown. (a) write the letters, a, b, c, d, e, f, g or h, of the electronic structures which show: (i) atoms of two different noble gases and 2 (ii) an ion of a group i element 1 (iii) an ion of a group v element 1

Explanation:

(a) Three physical properties of metals are good electrical conductivity (due to free - moving electrons), high thermal conductivity (electrons transfer heat), and malleability (layers of atoms can slide over each other).

1. (a) (i) Noble gases have full outer electron shells. A is helium (2 electrons in outer shell) and H is neon (8 electrons in outer shell).

(ii) Group I elements form +1 ions by losing one electron. B is a +1 ion of a Group I element.
(iii) Group V elements gain 3 electrons to form - 3 ions. D is a - 3 ion of a Group V element.

Answer:

(a) Good electrical conductivity, High thermal conductivity, Malleability

1. (a) (i) A, H

(ii) B
(iii) D