It’s all about the elements!

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Presentation transcript:

It’s all about the elements! Periodic Table It’s all about the elements!

What did we learn yesterday? Charge of protons . . . Positive ( + ) Charge of electrons . . . Negative ( - ) Charge of neutrons . . . Neutral ( 0 ) The nucleus contains . . . Protons and Neutrons

Still thinking about yesterday… Atomic number is . . . # of protons Atomic Mass . . . # of protons + # of neutrons\ How do you find # of neutrons in atom . . . Atomic mass – Protons Isotopes are an atom missing or having more than enough of what particle . . . Neutrons Are isotopes still the same atom . . . YES!! They are just funky now!

Periods of the Periodic Table Each horizontal row is a Period. Elements in the same period have the same number of energy orbitals. Label on left side of graph, Periods

Groups/Families of Periodic Table Each vertical column is called a group or a family. Elements in same group have same number of electrons in their outer orbital/energy levels.

Labeling Periodic Table Group 1- Write Alkali Metals and #1 Group 2- Write Alkaline Earth Metals, and #2 Group3-12 – Write Transitions metals Group13- Boron Family and #3 Group 14- Carbon Family and #4 Group 15- Write Nitrogen Family and #5 Group 16- Write Oxygen Family and #6 Group 17- Write Halogen Family and #7 Group 18- Inert(noble) Gas Family and #8

Time to CoLoR! (A different color for each bullet) Color Zig-Zag- Color Elements touching Zig-Zag are Metalloids or Semi-Metals (DO NOT COLOR Al) Color Noble Gases Color Hydrogen Element Color Non-Metals Color Alkali Metal Color Alkaline Earth Metals Color Transition Metals

Bohr’s Model Protons and neutrons in nucleus at center. Electrons are in specific orbitals/energy levels around nucleus. The valence electrons are the electrons in outermost energy level/orbital. Atomic Mass 8 8 2

11 Na How Many Valence Electrons? What group is this element from?

9 F How Many Valence Electrons? What group is this element from? Can we make the elements happy???

Lewis Model This model shows the valence electrons , the electrons in outermost energy level/orbital. Simply make dots for the valence electrons. Example Neon #Protons 10 # Electrons 10 Ne