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Phy Science Test 3
Bonding
Question | Answer |
---|---|
Define Ionic Bond | A bond that forms when valence electrons are transferred from one atom to another. Bond is between and nonmetal and a metal |
Define Covalent Bond | a bond that forms when valence electrons are shared forming molecules Bond is between 2 nonmetals |
Define Metallic Bond | In this type of bond electrons are delocalized, forming a sea of electrons |
An atom that has a net negative charge or net positive charge | Ion |
An ion with a positive charge | cation |
An ion with a negative charge | anion |
In sodium chloride (NaCl) which is the anion and which is the cation? | Sodium (Na) is the cation because it comes first in the formula Chloride (Cl) is the anion because it is listed second in the formula |
Draw the chemical formula for Potassium chloride | KCl |
Draw the chemical formula for Strontium oxide | SrO |
Draw the chemical formula for Calcium nitride | Ca>3N>2 |
What numbers are given to specific ions to show how they will combine with other ions. They can be positive, negative or zero. | Oxidation numbers |
Some covalent bonds don't share electrons equally, creating a positive side and a negative side to the molecules. What are these ions called? | Polar covalent bonds |
Name the ionic compound CdI>2 | Cadmium Iodide |
Name the ionic compound BaO | Barium Oxide |
Name the ionic compound Cr>2O>3 | Cromium Oxide |
Name the ionic compound FeBr>3 | Iron Bromide |
Name the covalent compound N>2O>4 | Dinitrogen Tetraoxide |
Name the covalent compound SeCl>6 | Selenium hexachloride |
Name the covalent compound N>2F>4 | Dinitrogen Tetraflouride |
Name the covalent compound SCl>4 | Sulfur Tetrachloride |
Prefixes are used in the nomenclature of what type of bonding? | Covalent Bonding |