3.1 Flashcards
Element
A pure substance made of one kind of atom.
How do compounds form?
Through chemical change/bonds
Transfer/exchange electrons (metals lose e-, while non-metals gain e-)
Ionic compound
The combination of a metal and non-metal element.
Covalent compound
A combination of non-metal and non-metal.
Atoms are joined when e-are showed between one another.
Ionic lattice
Ionic compound exists as a solid in the form of a lattice, a repeating pattern of positive and negative ions.
Polyatomic ions
Groups of atoms that are joined with covelent bonds.
They behave as a single unit
Never want to be split apart
Compound
A pure substance made up of 2 or more types of atoms that are chemically combined.
Chemical bonds
Hold together atoms in a molecule and ions in an ionic lattice.
How are chemical bonds formed?
When atoms gain, lose, or share electrons
How do atoms become negatively charged?
Gains electrons
How do atoms become positively charged?
Loses electrons
Non-metal charge
Positive or neutral
Metal charge
Positive
How are covelent compounds formed?
By sharing electrons
Molecule
A neutral particle that is made up of atoms when joined together by covelent bonds
