Question

The x-x bond length is 1.5 angstrom and y-y bond length is 1.48 angstrom. If the electronegative values of x and y are 3 and 3.5 respectively then y-x bond length would be

Answer 1

bond length can be calculated using the electronegativity value and radius of atom that is calculated using bond length of atoms.  ry= dy-y/2 = 1.48/2 = 0.74 rx = dx-x/2 = 1.5/2 = 0.75 Bond length of y-x bond can be calculated using below mention formula where ex, ey represents electronegativity of x and y atom. bond length of y-x bond: dy-x = ry + rx - 0.09(ex-ey)       =0.74 + 0.75- 0.09(3-3.5)       = 1.53 A

Answer 2

Explanation:

Radius of y = (bond length of Y-Y) /2

=(1.48)/2 = 0.74 angstrom

Radius of x = (bond length of X-X) /2

=(1.5)/2 =0.75 angstrom

Bond length of Y-X= (radius of Y + radius of X) - 0.09(electronegativity of Y - electronegativity of X)

=(0.74+0.75)-0.09(3.5-3)

=1.44 angstrom