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Chapter 2 science vocabulary
Terms in this set (23)
Uses chemical symbols to represent the atoms of the elements and their ratios in a chemical compound.
A number written to the right of a chemical symbol and slightly below it.
The force of attraction between positive and negative ions.
A pair of shared electrons between two atoms.
A group of atoms held together by covalent bonds.
Polar Covalent Bond
A covalent bond in which the electrons are shared unequally.
The equal sharing allows the electrons to move easily among the atoms of the metal.
Atoms combine in...
Group 1 elements, alkali metals form...
Group 2 elements, alkali earth metals form...
Metals form this kind of ion
Nonmetals typically form this type of ion
Group 17 elements, the halogens form this ion
Group 16 element form what kind of ion
How is an ionic compound named?
The metal's name followed by the nonmetal with the end replaced with -IDE Sodium & chlorine form sodium chloride.
Ionic bond attraction is similar to...
Ionic bonds form between what elements?
Metals and Nonmetals
Covalent bonds form between what elements?
Do ionic compounds dissolve easily in water?
Do covalent molecules dissolve easily in water?
Why is seawater a better conductor of electricity than river water?
There are more dissolved ions in seawater, making it more conductive.
What is the definition of a molecule?
Atoms bonded together with a covalent bond.
Properties of metals due to metallic bonds?
Conduct electricity, conduct heat, malleable, ductile.
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