Question

Q. an element x has 13 protons and y has 8 protons in their valency. write valency of x and y and the formula of compound from between them​

Answer 1

Answer:

(1) Valency of x= +3

Valency of x= -2

(2) Formula of the compound x and y= x3y2

Explanation:

1. For element x,

(z=p)

Electronic configuration for x= 2,8,3

(Valency is defined as number of electrons donated/accepted in its outermost shell.)

Since the element x is donating its 3 electrons to complete its Octet.

Hence,Valency of x= +3

For element y,

(z=p)

Electronic configuration for y= 2,6

(Valency is defined as number of electrons donated/accepted in its outermost shell.)

Since the element x is taking its 2 electrons to complete its Octet.

Hence,Valency of x= -2

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2. Formula of compound formed between x and y-

x | y

+2 | -3

(interchanging valences of both elements)

= x3y2

Hence,formula of the compound x and y=

x3y2