Valence Electrons and Reactivity

1a. How many valence electrons does Lead (Pb) have? 3 4 6 8 1b. Is Lead (Pb) reactive? yes no 2a. How many valence electrons does Cesium (Cs) have? 1 4 5 8 2b. Is Cesium (Cs) reactive? yes no 3a. How many valence electrons does Argon (Ar) have? 2 5 7 8 3b. Is Argon (Ar) reactive? yes no 4. How many valence electrons does Calcium have? 1 2 3 4 5. How many valence electrons does Germanium have? 1 2 3 4 6a. Which atom is more reactive, Calcium or Germanium? Calcium Germanium 6b. How do you know? Germanium has 2 valence electrons. The closer an atom gets to having 1 or 7 electrons in their outer shell, the less reactive it will be. Germanium has 4 valence electrons. The closer an atom gets to having 1 or 7 electrons in their outer shell, the more reactive it will be. Calcium has 2 valence electrons. The closer an atom gets to having 1 or 7 electrons in their outer shell, the more reactive it will be. Calcium has 4 valence electrons. The closer an atom gets to having 1 or 7 electrons in their outer shell, the less reactive it will be. 7. How many valence electrons does Xenon have? 2 4 6 8 8. How many valence electrons does Indium have? 2 3 5 8 9a. Which atom will not react, Xenon or Indium? Indium Xenon 9b. How do you know? Xenon has 8 valence electrons. This fills its outer shell. An atom with a full outer shell in non-reactive. Indium has 8 valence electrons. This fills its outer shell. An atom with a full outer shell in non-reactive. Xenon has 3 valence electrons. This does not fills its outer shell. An atom without a full outer shell in reactive. Indium has 3 valence electrons. This does not fills its outer shell. An atom without a full outer shell in reactive. 10. Sort the following atoms based on their reactivity. Reactive Sodium (Na) Thallium (Tl) Chlorine (Cl) Phosphorus (P) Non-reactive Helium (He) Neon (Ne) Radon (Rn) Krypton (Kr) 11. Consider the non-reactive atoms from question number 10 above. What do all of these atoms have in common? (Hint: They have two things in common.) Be sure answer in complete sentences for complete full credit.