MCAT Chemistry Question — Electron Configuration
What is the electron configuration of calcium in CaCl2? A) 1s22s22p63s23p5 B) 1s22s22p63s23p6 C) 1s22s22p63s23p64s1 D) 1s22s22p63s23p64s2 Explanation This question asks the examinee to determine the electron configuration of the calcium ion, as it exists in calcium chloride. Calcium in…