Which of the following statements is/are CORRECT?
1)For any element,the second ionization energy is larger than the first ionization energy.
2)Ionization energy is a positive value for all elements.
3)Ionization energy increases down a group of the periodic table.

Question

Quizplus · Accepted Answer

1) This statement is correct as second ionization energy requires more energy than first ionization energy because of the increased attraction between the positively charged nucleus and the negatively charged electron.
2) This statement is also correct as ionization energy is a measure of the energy required to remove an electron from an atom, which is a positive quantity.
3) This statement is incorrect. Ionization energy increases across a period from left to right, but decreases down a group because the electrons are farther away from the nucleus and the shielding effect of the inner electrons is greater.

Which of the Following Statements Is/are CORRECT