Question

An element having an atomic number 14 has 'X' valence electrons and the element with atomic
number 6 has Y valence electrons. What would be the value of X-Y?​

Answer 1

Answer:

silicon, atomic no -14, valency -4plus

carbon,atomic-no -6,valency-4plus

Answer 2

Answer:

The value of x - y is 0

Step-by-step explanation:

The number of valence electrons = no. of electrons in the outermost shell

Element with Atomic Number 14 is Silicon (Si)

The electronic configuration of Si is

2, 8, 4

Therefore, the number of valence electrons in Si = 4

or x = 4

Element with Atomic Number 6 is Carbon (C)

The electronic configuration of C is

2, 4

The number of valence electrons in C = 4

or y = 4

Therefore, x - y = 4 - 4 = 0