3.1 Non metallic substances and covalent bonding

• Chem
• Secondary Education

Lesson 3.1a Non-metallic substances and covalent bonding

13-09-2022

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• I can describe the formation of covalent bonds in simple molecules, including H₂, Cl₂, H₂O, CH₄, NH₃ and HCl.

• I can use dot-and-cross diagrams to show the electronic configurations in these and similar molecules.

GOALS

Covalent bonding is a chemical bonding formed by "sharing" of one or more PAIRS of electrons between two atoms, thus having a 'stable', noble gas electronic configuration.

I understand this concept.

I do not understand this concept.

a shorthand method of representing chemical elements and compounds using the symbols of the elements

1. chemical formula
2. chemical symbol
3. symbol notation
4. scientific notation

• Chemical formula
• Displayed formula
• Molecular model
• Dot-and-cross diagram

Ways of presenting covalent compounds

Name

Displayed formula

Dot-and-cross

H2

Cl2

H2O

CH4

NH3

HCl

Formula

• I can describe the formation of covalent bonds in simple molecules, including H₂, Cl₂, H₂O, CH₄, NH₃ and HCl.

• I can use dot-and-cross diagrams to show the electronic configurations in these and similar molecules.

GOALS

I THINK I NEED MORE PRACTICE ON:
1 - I can describe the formation of covalent bonds in simple molecules, including H2, Cl2, H2O, CH4, NH3 and HCl.
2 - I can use dot-and-cross diagrams to show the electronic configurations in these and similar molecules.

1

2

1 and 2

I am now confident.

HOW WELL DID YOU PARTICIPATE TODAY?
1 - I need to participate more! ⚠️
2 - I have participated and I will do more next time! ☺️
3 - I did an excellent job today! 🏆

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