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The table below shows some properties and electronic arrangement of ions of elements represented by letters P to X. Study the information and answer the...

The table below shows some properties and electronic arrangement of ions of elements represented by letters P to X. Study the information and answer the questions that follow. The letters are not the actual symbols of elements.


(i) Give the atomic numbers of elements T and V
(ii) What is the name given to the family of elements to which R,V and W belong.
(iii) Explain why:
I .The atomic radius of S is smaller than that of V
II. the atomic radius of R is larger than its ionic radius
(iv) Using dots (•) and crosses (x) to represent outermost electrons, show the bonding in
the compound formed between U and X
(v) Describe how a mixture of V chlorine s Lead(II) chloride can be separated

Answers

(i) T – 38
V – 11
(ii) Alkali metals.
(iii) I – These are elements on period 3 atomic radius of S is smaller since electrons of
S experience high nuclear attraction.
II- R – Gains stability by gain vof electrons resulting into electron –repulsion.

v) - Add cold waterv to the mixture and stir to dissolve V chloride
- Filter to vobtain V chloride as filtrate and Lead chloride as residue.
- Evaporate vthe filtrate to obtain crystals of V chloride.

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sharon kalunda answered the question on May 20, 2019 at 14:09

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