18 terms

Chapter 18

Physical science chapter 18
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Terms in this set (...)

Chemical bonds
Force that holds atoms together in a compound.
Chemical formula
Chemical shorthand that uses symbols to tell what elements are in a compound and their ratios.
Covalent bond
Attraction formed between atoms when they share electrons.
Ion
Charged particle that has either more or fewer electrons than protons.
Ionic bond
The force of attraction between the opposite charges of the ions in an ionic compound.
Molecule
A neutral particle that forms as a result of electron sharing among atoms.
Nonpolar bond
A covalent bond in which electrons are shared equally by both atoms.
Nonpolar molecule
Molecule that shares electrons equally and does not have oppositely charged ends.
Polar bond
A covalent bond in which the electrons are not shared equally, resulting in a slightly positive end and a slightly negative end.
Polar molecule
A neutral molecule in which unequal electron sharing results in a slightly positive end and a slightly negative end.
Binary compound
Compound that is composed of two elements.
Hydrate
Compound that has water chemically attached to its atom and written into its chemical formula
Oxidation number
Positive or negative number that indicates how many electrons and atom has gained, lost, or shared to become stable.
Polyatomic ion
Positively or negatively charged, covalently bonded group of atoms.
Stable
Chemical bonds
⬇️
Form compounds
⬇️
Because atoms often become
⬇️
________
⬇️
By gaining, losing, or sharing electrons
Different from
Chemical bonds
⬇️
Form compounds
⬇️
With properties
⬇️
________
⬇️
The individual atoms
1. Ionic bonds
2. Transferred (gained/lost)
Chemical bonds
⬇️
Kinds of
⬇️
1._______
⬇️
Electrons are
⬇️
2.________
1. Covalent bonds
2. Shared
©hemical bonds
⬇️
Kinds of
⬇️
1._______
⬇️
Electrons are
⬇️
2._______