Covalent compounds
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Covalent Compounds. Ionic vs. Covalent Compound. Ionic Compounds Between a metal and a non-metal Transfers electrons Covalent Compounds Between a non-metal and a non-metal Electrons are shared. Covalent Compound. Nitrogen = non-metal. Oxygen = non-metal. Covalent Compounds.

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Covalent Compounds

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Covalent compounds

Covalent Compounds


Ionic vs covalent compound

Ionic vs. Covalent Compound

  • Ionic Compounds

    • Between a metal and a non-metal

    • Transfers electrons

  • Covalent Compounds

    • Between a non-metal and a non-metal

    • Electrons are shared


Covalent compound

Covalent Compound

Nitrogen = non-metal

Oxygen = non-metal


Covalent compounds1

Covalent Compounds

Hydrogen = non-metal

Carbon = non-metal

  • Look at the first element listed in the compound… notice that it is a NON-METAL

  • If both elements are non-metals, then it is a covalent bond. This means that rather than transferring electrons (like ionic compounds do), the two elements share their valence electrons


Naming covalent compounds

Naming Covalent Compounds

Prefixes are used to indicate how many of each atom are in the compound. Prefixes are written in front of each element

The prefixes listed in your data booklet, and are:

Prefixes

Prefixes

6 = hexa

7 = hepta

8 = octa

9 = nona

10 = deca

  • 1 = mono

  • 2 = di

  • 3 = tri

  • 4 = tetra

  • 5 = penta


Naming example

Naming Example

Oxygen = non-metal

Carbon = non-metal

Have 2 oxygens

CO2

2 = di

Name (in the order they appear)

Carbon dioxide

Change to “ide”


Naming example1

Naming Example

Oxygen = non-metal

Phosphorus = non-metal

Have 10 oxygens

P4O10

10 = deca

Have 4 phosphorus’

4 = tetra

Name (in the order they appear)

Tetraphosphorus decaoxide

Change to “ide”


Formula example

Formula Example

C  only have 1

S  have 2 because it is “di”

Carbon disulfide

Formula (put them together in the order)

CS2


Formula example1

Formula Example

C  have 2 (di)

Cl  have 4 (tetra)

Dicarbon tetrachloride

Formula (put them together in the order)

C2Cl4


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