Which of the following statements are correct?
(A) The process of adding an electron to a neutral gaseous atom is always exothermic
(B) The process of removing an electron from an isolated gaseous atom is always endothermic
(C) The \( 1^{\text{st}} \) ionization energy of boron is less than that of beryllium
(D) The electronegativity of C is \( 2.5 \) in \( \mathrm{CH_4} \) and \( \mathrm{CCl_4} \)
(E) \( \mathrm{Li} \) is the most electropositive among elements of group I
Choose the correct answer from the options given below:
