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Valency

What valencie...

Question

What valencies will be shown by the elements A, 13, C, D and E having atomic numbers 2, 4, 8, 10, and 13 respectively.

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Solution

A = 0; B = 2; C = 2; D = 0; E = 3

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Similar questions

Q. The elements

A, B, C, D a n d E

have atomic number 9, 11,17,12 and 13, respectively. Which pair of elements belongs to the same group?

Q. Question 7
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?

(a) A and B
(b) B and D
(c) A and C
(d) D and E

Q. The elements A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is:

(a) A and B
(b) B and D
(c) A and C
(d) D and E

(a) Define valency of an element. What valency will be shown by an element having atomic number 14 ?

(b) What is the relation between the valency of an element and the number of valence electrons in its atoms ? Explain with examples.

A, B, C, D

are the elements having an atomic number

13, 17, 20, 8

.Given the formula formed between
1. A and B
2.C and D

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