Question

The correct option with respect to the Pauling electronegativity values of the elements is:
A.Ga < Ge
B.Si < Al
C.B < C
D.P < S

Answer 1

Non-metals are elements that accept or gain electrons to form negative ions. The outermost shell of non-metals normally has 4, 5, 6, or 7 electrons. Non-metals are materials that lack any of the characteristics of metals. They are excellent heat and power insulators. They are usually gases, but they can also be liquids. Carbon, sulphur, and arsenic, for example, are stable at room temperature.

Complete answer:
An atom's ability to draw mutual electrons (or electron density) to itself is known as electronegativity. The electronegativity of an atom is determined by its atomic number as well as the difference between the valence electrons and the charged nucleus. The greater the related electronegativity, the more electrons are attracted to an atom or a substituent group. Electropositivity is the polar opposite of electronegativity: it is a measure of an element's ability to donate valence electrons.
The idea of electronegativity was first suggested by Linus Pauling in 1932 to explain why the covalent bond between two separate atoms (A–B) is greater than the sum of the A–A and B–B bonds. This "additional stabilisation" of the heteronuclear bond is due to the contribution of ionic canonical forms to the bonding, according to valence bond theory, of which Pauling was a prominent supporter.
The electronegativity difference between atoms A and B is given by:
$\left| {{\chi _{\text{A}}} - {\chi _{\text{B}}}} \right| = {({\text{eV}})^{ - 1/2}}\sqrt {{E_{\text{d}}}({\text{AB}}) - \dfrac{{{E_{\text{d}}}({\text{AA}}) + {E_{\text{d}}}({\text{BB}})}}{2}}$
Since the number of charges on the nucleus changes over time, electronegativity rises. This increases the attraction of the bonding pair of electrons.
The right electronegativity order is:
BAlPGaAs a result, the right choices are A and D.

Note:
The method of measurement first suggested by Linus Pauling is the most widely used. This yields a dimensionless quantity known as the Pauling scale, which has a proportional scale of 0.79 to 3.98 (hydrogen = 2.20). Where other measurement techniques are used, it is customary (though not required) to cite the results on a scale that covers the same set of numerical values: this is known as an electronegativity in Pauling units.