Using the Periodic Table
Which two of these elements would you expect to show the greatest similarity in chemical and physical properties: B, Ca, F, He, Mg, P?
Locate Na (sodium) and Br (bromine) in the periodic table. Give the atomic number of each and classify each as metal, metalloid, or nonmetal.
Chapter 7: Periodic Properties of the Elements Charge and Distance and Electrons in Orbitals Zeffhe effective nuclear charge. Refers to the protons in the nucleus, not the overall charge of the atom For multiple electrons we must consider their approximate location in the atom, and the matter in which they “shield” each other An electron in a 1s orbital experiences...