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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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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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