Sci7 c1 l1_periodic table atom presentationPresentation Transcript
The Periodic Table
Define the following terms.3.Proton4.Neutron5.Electron6.Nucleus
1. Protons: Positive charge2. Neutron: Neutral3. Electron: Negative Charge4. Nucleus: Center of atom
Why is it appropriate to say that atoms are the “building blocks” of all matter?
Many periodic tables look different but still contain similar information.
1. Atomic Number Number of Protons Number of Electrons Number of Protons = Number of Electrons2. Symbol: Letter(s) that represent the element (Always begins with a capital letter).3. Atomic Mass: Number of Protons + the Number of Neutrons in one atom of the element (an average).