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Reading the Element Squares

If you had to explain the information about the element above what would you say?. Reading the Element Squares. The Element Square. Other items State Chemical Name Group Name Group #. Symbol. Atomic #. Atomic Mass. What does it mean?. Atomic Number # of protons (P+)

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Reading the Element Squares

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  1. If you had to explain the information about the element above what would you say? Reading the Element Squares

  2. The Element Square • Other items • State • Chemical Name • Group Name • Group # Symbol Atomic # Atomic Mass

  3. What does it mean? • Atomic Number • # of protons (P+) • # of electrons (e-) • (only in natural state) • Neon has 10 protons. Atomic #

  4. What does it mean? • Atomic Mass • Number of protons and neutrons in nucleus • Approximation • Ne = 20.18amu • Can’t have .18 of a subatomic particle • Calculation • Mass – atomic # = neutrons • 20 – 10 = 10 neutrons Atomic Mass

  5. What does it mean? • Chemical Symbol • Mostly from Latin names • Lead = Pb • Pb = Plumbum • English or German names too • Named after people or place of discovery • Rutherfordium = Rf • Californium = Cf • 1, 2, or 3 letters • 1st capitalized • 2nd lower case • 3rd lower case (temporary ) Symbol

  6. What does it mean? • Other items • State • Solid, liquid, gas • Chemical Name • Group Name (Families) • Alkaline Earth Metals • Noble Gases • Group # • 1-18 • # of valence electrons • Not for groups 3-12

  7. Now Give it a Try! • Periodic Table • Pgs. 112-113 • Choose 1 element from 3 t0 20. • Can’t be the same as anyone else at your table. • Copy the information from the book onto your element square (index card). • Gather other information about your element from the textbook. • Pgs. 120-124; 128-135 • Write that information onto the back of index card. • On purple paper, draw a model of your atom.

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