Write electron configurations and Lewis structures for each element. Indicate which of the electrons in the electron configuration are shown in the Lewis structure.
Week of February 3, 2014 -Astro 101 Notes The material world --- atoms etc. • Hydrogen atomic mass 1, atomic number 1 • Helium atomic # = 2 atomic mass number(weight) = 4 • Hydrogen isotope 2: Deuterium • Atomic number = # of protons (element!) • Atomic mass number = # of protons + # of neutrons If (an) electron(s) is (are) missing: • Ion charged particle...