What ‘s the A tomic #? How many P rotons are there? How many E lectrons are there? What is the Atomic mass? What part of the Atomic Mass represents the protons? So, if we have 11 protons in the Atomic Mass, how much mass then must represent the Neutrons? 11 Na Sodium 23.0 11 23 11
Find the number of protons, neutrons, and electrons in Fluorine!! A=P=E 9 protons, 9 electrons M-A=N 19-9 = 10 Neutrons
Glue in the chart under Application. Using a pencil & your periodic table, fill in the chart.
Chem. Name Chem. Symbol Atomic Number Atomic Mass # of Protons # of Neutrons # of Electrons K 50 36 195 Barium
You found an unknown substance that you had analyzed. The chemist discovered it had 79 protons. What did you find AND how did you know? In 3-4 sentences, explain what makes every Element on the Periodic Table different.