States of Matter
The state with the most energy is GAS.
The state that has a regular pattern of particles is called a SOLID.
Liquids and solids can not be COMPRESSED because the particles are too close together.
Remember as termpreture INCREASES particles VIBRATE more.
When a liquid boils the particles VIBRATE so much that it FORCES the bonds to BREAK and produces a GAS.
Methods of Separating
Is to seperate insoluble soloutions such as water and sand and you would use filtration to seperate them.
This is uses to seperate a liquid from a mixture. To Keep/use the liquid.
It involves condensation and boiling the chemical with the lowest boiling point will come of FIRST.
FRACTIONAL DISTILATION seperates a mixture of many liquids.
HEAT a soloution, the SOLVENT evaporates and the SOLID remains.
The Nucleus - In the middle of the atom, contains PROTONS and NEUTRONS, has a POSITIVE charge.
The Electrons - Move AROUND the NECLEUS, they are NEGATIVELY CHARGED, they have NO MASS.
Remember: Number of ELECTRONS equals number of PROTONS.
ATOMIC number and MASS number describe an ATOM.
Mass number - is TOTAL of protons and neutrons.
Atomic number - Number of PROTONS
To calculate NEUTRONS take number of PROTONS away from MASS NUMBER
MASS NUMBER - PROTONS = NEUTRONS