Study the table below and answer the questions that follow.

Study the table below and answer the questions that follow.

(i) Complete the table above
(ii) From the table, choose the most reactive metal. Explain
(iii) Which element is the most electronegative. Explain
(iv) Using dots (.) and crosses (x) to represent electrons, show the bonding in the chloride of Q
(v) Explain the solubility of element T in water
(b) (i) Why is aluminium used to make utensils yet it is a reactive metal?

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(a) (i) P – ionic configuration - 2
- Formula of oxide – PO
Q – Atomic number – 20
R- Atomic number – 19
T – Ionic configuration – 2.8.8
Formula of oxide – TO2

(ii) R – Has the largest atom with one outer electron hence easily loses it.

(iii) S – is the smallest atom of a non-metal with a deficit of only one electron hence
easily gains.

(iv)

(v) T is insoluble – It has a molecular structure/non-metal
(b)(i) It is coated with an nonreactive layer of aluminium oxide which prevents it form reacting.

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maurice.mutuku answered the question on October 15, 2019 at 05:31

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