Question

Consider the following statements
a)The radius of an atom is larger than that of the cation.
b)The ionization energy generally increases with an increasing atomic number in a period.
c)The electronegativity of an element is the tendency of an isolated atom to attract an electron.
Which of the above statements is/are wrong?

• A. a alone
• B. c alone
• C. a and b
• D. b and c

Answer 1

The correct option is B c alone

Electronegativity is the tendency of an atom (not isolated atom ) to attract the shared pair of electrons (not single electron) towards itself.

3rd statement is wrong and the 1st and 2nd statements are correct as atomic radius of an atom is greater than cation and the ionization energy generally increase across the period as the nuclear charge increase.

Option B is correct.