The Greek philosopher Leucippus (5th century BC) and his pupil Democritus used the word "atom" to mean an indivisibly-small particle of matter. John Dalton (1766-1844) was among the first to use the concept to explain the observed chemical properties of compounds.
It is a homogeneous solution.
a solid
Leukippos and Democritus; possible also Mochus.
Yes. Sound is produced by vibrating matter, such as a string or arts of the inner ear, so it cannot travel if there is no matter to vibrate.
solid because the particles are close together and they have no space to move around ;)
Democritus (ancient Greece). Of course he had no evidence whatsoever. Lucky guess.
Peter Waltan......hope that helps!
It is untrue. John Dalton proposed the theory that all matter is made up of individual particles called atoms, which cannot be divided.
Atoms are the smallest particles of matter. An atom can not be divided by normal chemical means, they can only be divided during nuclear fusion.
1.particles of matter move continously2.particles of matter attract each other3.particles of matter have space between themThe above answers are questionable. #2 is just not true at all as a universal rule (2 protons for example will repel each other). So let me present these:All matter has mass (particle or otherwise)All matter has weight (as a result of having mass)All matter occupies space (even particles)All matter has densityAll matter has inertiaAll matter is impenetrable (this means two particles cannot occupy the same space)All matter is a form of energy. As proven by famous e=mc2Given 7, all matter is conserved (cannot be destroyed)There are more... but those are the big ones.
1.particles of matter move continously2.particles of matter attract each other3.particles of matter have space between themThe above answers are questionable. #2 is just not true at all as a universal rule (2 protons for example will repel each other). So let me present these:All matter has mass (particle or otherwise)All matter has weight (as a result of having mass)All matter occupies space (even particles)All matter has densityAll matter has inertiaAll matter is impenetrable (this means two particles cannot occupy the same space)All matter is a form of energy. As proven by famous e=mc2Given 7, all matter is conserved (cannot be destroyed)There are more... but those are the big ones.
1.particles of matter move continously2.particles of matter attract each other3.particles of matter have space between themThe above answers are questionable. #2 is just not true at all as a universal rule (2 protons for example will repel each other). So let me present these:All matter has mass (particle or otherwise)All matter has weight (as a result of having mass)All matter occupies space (even particles)All matter has densityAll matter has inertiaAll matter is impenetrable (this means two particles cannot occupy the same space)All matter is a form of energy. As proven by famous e=mc2Given 7, all matter is conserved (cannot be destroyed)There are more... but those are the big ones.
1.particles of matter move continously2.particles of matter attract each other3.particles of matter have space between themThe above answers are questionable. #2 is just not true at all as a universal rule (2 protons for example will repel each other). So let me present these:All matter has mass (particle or otherwise)All matter has weight (as a result of having mass)All matter occupies space (even particles)All matter has densityAll matter has inertiaAll matter is impenetrable (this means two particles cannot occupy the same space)All matter is a form of energy. As proven by famous e=mc2Given 7, all matter is conserved (cannot be destroyed)There are more... but those are the big ones.
1.particles of matter move continously2.particles of matter attract each other3.particles of matter have space between themThe above answers are questionable. #2 is just not true at all as a universal rule (2 protons for example will repel each other). So let me present these:All matter has mass (particle or otherwise)All matter has weight (as a result of having mass)All matter occupies space (even particles)All matter has densityAll matter has inertiaAll matter is impenetrable (this means two particles cannot occupy the same space)All matter is a form of energy. As proven by famous e=mc2Given 7, all matter is conserved (cannot be destroyed)There are more... but those are the big ones.
Atoms
He asked the question: If you break a piece of matter in half, and then break it in half again, how many breaks will you have to make before you can break it no further? Democritus thought that at some point one would get to a smallest possible bit of matter. He called these basic matter particles, atoms. Atom in Greek means "indivisible".
Matter is limited everywhere. Matter cannot be created or destroyed, the atoms that make up matter are made up of smaller particles, proton and neutrons for example. Because there is no (proven) way to break these particles down any further that means that there is a limit to how small mater can get. (So it cant ever really disappear) Also since these particles cannot be broken down any further, there is nothing to build more of them with. (So matter cant be created, since the only thing you could use to build matter is already matter.)