> Question 4 Which of the following statements is TRUE about the first lonization energies of Be and Ca atoms? Ca has a lower first ionisation energy than Be since Ca has more shells in = 4) than Bein-2). Ca has a higher first lonization energy than Be since Cs has a larger effective nuclear charge, Ca has a higher first ionization energy than Be since Ca has more shells (n = 4) than Be In-2) Ca has a lower first lonization energy than Be since Ca has a larger effective nuclear charge. Ca has a higher first ionization energy than Be since Ca has more electrons