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VS Chemical Bonding
Ionic and Covalent Bonds
Question | Answer |
---|---|
attractive force that holds different atoms together to make a compound | chemical bond |
two or more elements joined together in a certain ratio | compound |
a diagram to show how the atoms in a compound are connected; uses chemical symbols to represent the atoms | structural formula |
results in a substance that is a strong solid with a high melting/boiling point | crystal (network structure) |
determines whether a substance is a solid, liquid or gas at room temperature | attractions between the molecules |
interact to form bonds between atoms | valence electrons |
number of valence electrons to make a "full" outer shell in MOST elements | 8 |
bonds formed when a positive ion and a negative ion are attracted to each other | ionic bond |
form positive ions (are electron donors) | metals |
form negative ions (are electron takers) | nonmetals |
formed by the transfer of electrons | ionic bond |
tells the ratio of ions in an ionic compound | formula unit |
do not conduct electricity unless they are dissolved in water | ionic compounds |
bonds that form between metal atoms that cause them to pack together and allow them to conduct electricity | metallic bonds |
bonds formed between nonmetals | covalent bonds |
bonds formed between a metal and a nonmetal | ionic bond |
bonds formed when atoms share one or more pairs of valence electrons | covalent bonds |
a covalent bond in which the electrons are shared equally | nonpolar covalent bond |
a covalent bond in which the electrons are NOT shared equally, forming a sort of positive end and negative end of the molecule | polar covalent bond |