Question

(a) Study the table given below and answer the following questions:

Elements
А
B
С
D
E
Mass Number
1
14
40
32
20
Atomic Number
1
7
20
16
10
i. Identify an element having 5 valence electrons.
. Identify an element having no neutron.
iii. Identify an element exhibiting +2 valency
iv. Identify an element having zero valency.​

Answer 1

Answer:

(i) The element having 5 valance election is element B which is nitrogen

(ii) Element A or hydrogen is an element with no neutron

(iii) element D or Sulphur is an element exhibiting +2 valency

(iv) Element having zero valency is element E or Neon.

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