Question 21 Not yet answered Marked out of 1.00 Flag question Which of the following statement is correct? Select one: a. Bond polarity and ionic character increase with an increasing difference in electronegativity b. Isoelectronic species are elements or ions that have the same, or equal number of electrons c. The bond length is the internuclear distance at which the potential energy minimum d. The reason the second ionization energy is higher than the first relates to the attraction between the electrons and the nucleus e. All of these are correct