Presentation is loading. Please wait.

Presentation is loading. Please wait.

ELECTRONS AVAILABLE FOR BONDING

Published byChristine Shepherd Modified over 5 years ago

Similar presentations

Presentation on theme: "ELECTRONS AVAILABLE FOR BONDING"— Presentation transcript:

1 ELECTRONS AVAILABLE FOR BONDING
Valence Electrons: ELECTRONS AVAILABLE FOR BONDING

2 What is a valence electron?
Valence electrons are the electrons found on the OUTER most energy shell of an atom Valence electrons are used for bonding between two or more atoms For Example: Neon has a total of 10 e- The outer most energy shell for Neon in n2, therefore the 8 e- found in n2 are Neon’s valence electrons Neon has 8 ve- The first 2 e- are placed in n1 The remaining 8 e- are placed in n2

3 Lewis Dot Structure An atom’s valence electrons can be represented by a Lewis dot Structure. 1 valence e- X 2 valence e- 3 valence e- 4 valence e- 5 valence e- 6 valence e- 7 valence e- 8 valence e- All elements in Group 1 have 1 ve- All elements in Group 2 have 2 ve- All elements in Group 3A have 3 ve- All elements in Group 4A have 4 ve- All elements in Group 5A have 5 ve- All elements in Group 6A have 6 ve- All elements in Group 7A have 7 ve- All elements in Group 8A have 8 ve-

4 Li Be B C N O F Ne Learning Check #1
Draw the Lewis dot structure to represent the valence electrons for the following elements. lithium Li beryllium Be boron B carbon C nitrogen N oxygen O fluorine F neon Ne

5 Valence Electrons

6 Valence Electrons from E Con
Pay attention to the HIGHEST energy level of the element and count the total electrons within that energy level: Example: 1s22s22p63s23p64s2 ___________ Example: 1s22s22p63s23p64s23d10 _________ Example: 1s22s22p6 ___________

7 Practice!!!! 1s22s2 ___________ 1s22s22p63s23p6 ___________
1s22s22p63s23p64s63d104p5 ___________ 1s22s22p63s23p64s23d104p65s1 __________

8 Group 1A (alkali metals) have 1 valence electron

9 Group 2A (alkaline earth metals) have 2 valence electrons

10 Group 13 (3A) elements have 3 valence electrons

11 Group 14 (4A) elements have 4 valence electrons

12 Group 15 (5A) elements have 5 valence electrons

13 Group 16 (6A) elements have 6 valence electrons

14 Group 17 (7A) (halogens) have 7 valence electrons

15 Group 18 (8A) (Noble gases) have 8 valence electrons, except helium, which has only 2

16 Transition metals have 1 or 2 valence electrons

17 Lewis Dot Structure An atom’s valence electrons can be represented by a Lewis dot Structure. 1 valence e- X 2 valence e- 3 valence e- 4 valence e- 5 valence e- 6 valence e- 7 valence e- 8 valence e- All elements in Group 1 have 1 ve- All elements in Group 2 have 2 ve- All elements in Group 3A have 3 ve- All elements in Group 4A have 4 ve- All elements in Group 5A have 5 ve- All elements in Group 6A have 6 ve- All elements in Group 7A have 7 ve- All elements in Group 8A have 8 ve-

18 Li Be B C N O F Ne Learning Check #1
Draw the Lewis dot structure to represent the valence electrons for the following elements. lithium Li beryllium Be boron B carbon C nitrogen N oxygen O fluorine F neon Ne

Download ppt "ELECTRONS AVAILABLE FOR BONDING"

Similar presentations

ELECTRONS AVAILABLE FOR BONDING

ELECTRONS AVAILABLE FOR BONDING
Oxidation Numbers.

Oxidation Numbers.
Why are electrons important? Electrons are responsible for HOW ELEMENTS REACT That is why we learned how to: – Write electron configurations – Draw electron.

Why are electrons important? Electrons are responsible for HOW ELEMENTS REACT That is why we learned how to: – Write electron configurations – Draw electron.
Question set 1 Question set 2 Question set 3 Question set 4 Question set 5 Question set 6 $100.00 $ 100.00 $ 100.00 $ 100.00 $ 100.00 $100.00 $200.00.

Question set 1 Question set 2 Question set 3 Question set 4 Question set 5 Question set 6 $ $ $ $ $ $ $
Organizing the Elements

Organizing the Elements
Introduction to ATOMS. Electrons are always on the move.

Introduction to ATOMS. Electrons are always on the move.
The Periodic Table 1 18 Group 1 Alkali Metals

The Periodic Table 1 18 Group 1 Alkali Metals
PRACTICE DRAWING ATOMS. DRAWING ATOMS RULES PROTONS = Atomic number ELECTRONS = Atomic number NEUTRONS = mass number – atomic number 1 st level can hold.

PRACTICE DRAWING ATOMS. DRAWING ATOMS RULES PROTONS = Atomic number ELECTRONS = Atomic number NEUTRONS = mass number – atomic number 1 st level can hold.
Valence electrons the electrons that are in the highest (outermost) energy level that level is also called the valence shell of the atom they are held.

Valence electrons the electrons that are in the highest (outermost) energy level that level is also called the valence shell of the atom they are held.
Bluff! A Game and Study Guide All In One!. Rules In turn, each team will be asked a question. Team members who know the answer will stand up. The other.

Bluff! A Game and Study Guide All In One!. Rules In turn, each team will be asked a question. Team members who know the answer will stand up. The other.
# of valence electrons = 1 P: 3 N: 4 - - - P+: 3 e-: 3 N: 4 Let’s do together:

# of valence electrons = 1 P: 3 N: P+: 3 e-: 3 N: 4 Let’s do together:
The Periodic Table Flip Book

The Periodic Table Flip Book
Representing Atoms Visually Lewis Dot Diagrams (Dot Diagrams; Lewis Structures)

Representing Atoms Visually Lewis Dot Diagrams (Dot Diagrams; Lewis Structures)
Lewis Structure and Bonding. Lewis Dot Diagram of Atoms The chemical symbol for the atom is surrounded by a number of dots corresponding to the number.

Lewis Structure and Bonding. Lewis Dot Diagram of Atoms The chemical symbol for the atom is surrounded by a number of dots corresponding to the number.
Chapter 7. Objectives-7.1  Determine the number of valence electrons in a representative element.  Explain how the octet rule applies to atoms of metallic.

Chapter 7. Objectives-7.1  Determine the number of valence electrons in a representative element.  Explain how the octet rule applies to atoms of metallic.
CHEMICAL BONDING Occurs when 2 or more atoms combine by sharing or transferring electrons. –Can be from the same element (O 2 ) or different elements (NaCl)

CHEMICAL BONDING Occurs when 2 or more atoms combine by sharing or transferring electrons. –Can be from the same element (O 2 ) or different elements (NaCl)
 Electrons are found in specific orbits/clouds spinning around the nucleus  Orbits are named: 1s,2s,2p,3s,3p,3d,4s,4p,4d,4f,5s,5p,5d,5f,6s,6p,6d,6f,7s.

 Electrons are found in specific orbits/clouds spinning around the nucleus  Orbits are named: 1s,2s,2p,3s,3p,3d,4s,4p,4d,4f,5s,5p,5d,5f,6s,6p,6d,6f,7s.
Metals High luster when cleaned and high conductivity Non-metals Low luster when cleaned and low conductivity Metalloids Combo of metals and non-metals.

Metals High luster when cleaned and high conductivity Non-metals Low luster when cleaned and low conductivity Metalloids Combo of metals and non-metals.
Everything that is underlined should get filled in on your notes!

Everything that is underlined should get filled in on your notes!
 Elements are arranged according to atomic number  Number of protons  Not atomic mass.

 Elements are arranged according to atomic number  Number of protons  Not atomic mass.

Similar presentations

Ads by Google