1. WHAT ARE VALENCE ELECTRONS? WHAT INFORMATION CAN THEY GIVE US? 2. OPEN YOUR TEXTBOOK TO PAGE 358 READ ABOUT ELEMENTAL EFFECTS AND ANSWER THE QUESTIONS. Do Now: 5 -10 min Valence electrons: electrons in the outermost energy level from the nucleus. They tell us how many electrons are available for bonding. Strotntium (Red) and Sodium (Yellow)
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Do Now: 5 -10 min Valence electrons: electrons in the outermost energy level from the nucleus. They tell us how many electrons are available for bonding.
1. Draw an Aluminum atom using Bohr’s model. (Atomic # = # p+), (# p+ = # e-), (n = mass# - p+) 2. How many valence electrons does it have? 3. Draw a Lewis Dot Diagram for Aluminum. 4. How many unpaired electrons are there? 5. How many bonds can Aluminum form? 13 Al Aluminum p+ 13 e- 14 n Period 3 13 p+ 14 n 3 Al 3 3
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1. WHAT ARE VALENCE ELECTRONS? WHAT INFORMATION CAN THEY GIVE US?
2. OPEN YOUR TEXTBOOK TO PAGE 358 READ ABOUT ELEMENTAL EFFECTS AND ANSWER THE QUESTIONS.
Do Now: 5 -10 min
Valence electrons: electrons in the outermost energy level from the nucleus.
They tell us how many electrons areavailable for bonding.
Strotntium (Red) and Sodium (Yellow)
HOMEWORK AND ANNOUNCEMENTS Due: page 359-363 All Questions Due: Lewis Dot Structure worksheet
Lab reports and power point presentations due in one week
Homework: Read Pages 397-401 complete all questions and activities
USA TestPrep
MORE PRACTICE1. Draw an Aluminum atom using Bohr’s model.