c1 - atomic structure

Cards (12)

crystallisation, separate solutions into solutes and solvents
What is the process of crystallisation?
mixture is heated until the solvent evaporates
What does chromatography separate?
separate solutions with multiple solutes in the solvent
How does chromatography work?
different solvents move a different at different speeds so they separate on the paper
Filtration separates mixtures that contain in soluble solids and liquids
Infiltration insoluble solids are trapped by filter paper liquid is collected below
Fractional distillation separates lots of liquids with different boiling points
In fractional distillation, different fractions, condensed and are collected at different temperatures
What is atomic number?
The number of protons in an element
What is the mass number of an element?
The protons and neutrons added together
Isotopes are atoms is the same element with different numbers of neutrons
In an atom, the closer shell is to the nucleus the lower its energy level