Science-chemistry Flashcards
1
Q
Liquids on the periodic table
A
Mercury and bromine
2
Q
Definition of an element
A
A pure substance that cannot be simplified. Made up of one kind of atom only.
3
Q
Definition of a compound
A
A pure substance that can be simplified. Made up of two or more different elements chemically combined in a fixed ratio.
4
Q
Definition of a mixture
A
Consist of a number of compounds (elements, compounds or mixtures) that are not chemically joined and not in a fixed ratio. Are not pure, made up of different particles.
5
Q
Properties of metals
A
Lustrous fresh surface Good conductors of electricity Good conductors of heat Malleable Ductile Solid at room temperature (except Hg) Relatively dense
