Valence Electrons - Edl

Valence Electrons - Edl

Valence Electrons Unit 5 Bonding Mrs. Callender What are Valence Electrons and What are Their Uses? Lesson Essential Question: Valence Electrons They are electrons in the outermost shell. They are used in bonding. Nitrogen GroupGroup or Group Chalcogen or Group 18 Noble Gases or Carbon Alkali Group Metals

or Group have 15 has 5 valence e valence s. Alkaline Earth Metals Boron Group or Group 13 2- 6 -Group Group 16 has 6 e has 8 valence e s.

(s p) Halogen or Group 14 has one 4 valence valence e e-. s. 2 3 2 2 1 (shave p1s.) (s two e-s. e(s has232valence e (s p ) Helium 2 s.

4 valence - )which p ) Exception: 17 has 7 valence s. (s p ) (s ) Transition or ed valence s since it (s2has p5) twoMetals block have 1 or is a elements s2. 2 valence e-s. Lanthanide and Actinide Series Elements or f block elements have 1 or 2 valence e-s.

Dot Valence Electrons can be represented by Lewis Dot Designations Structures. 1 valence e- 2 valence e- 3 valence e- 4 valence e- 5 valence e- 6 valence e- X X X X 7 valence e- 8 valence e- X X X X Dot Designations For Write the Lewis Dot Structures 3 for the elements in Period

Period 3. 1 valence e- 2 valence e- 3 valence e- 4 valence e- Na Mg 5 valence e- 6 valence e- P S Al Si 7 valence e- 8 valence e- Cl Ar

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