All the 4 forces known play in keeping matter together. Gravity keeps planets together and influences all matter with mass (though gravity is so weak at atomic scales that it has so far been ignored at that level). The predominant force keeping electrons tied to their atoms and keeping atoms grouped in molecules is the Electromagnetic force. The force keeping the nucleus of atoms together is the Strong force. Then there is the Weak force responsible for beta decay. Search Wikipedia for more information on the forces
2,000 billion billion atoms and molecules,,,atoms are like tiny marbles or ridged sheres,,molecules are groups of atoms =]
Energy!
John DaltonJohn Dalton
It was the Greek philosopher Democritus who proposed the hypothesis that matter was composed of tiny indivisible particles. Democritus also wrote on mathematical topics like geometry. He was born in 460 B.C. and died in 370 B.C.
That matter was made up of indivisible particles -Apex
Yes alpha particles are matter. In fact they are just the nuclei of Helium atoms. That is Helium atoms without their two orbiting electrons. Alpha particles are therefore composed of two neutrons and two protons.
Fermion
particles
John DaltonJohn Dalton
John DaltonJohn Dalton
An atomist is a believer in atomism, a person who believes matter is composed of elementary indivisible particles.
John DaltonJohn Dalton
An atomician is another word for an atomist, a person who believes matter is composed of elementary indivisible particles.
It was the Greek philosopher Democritus who proposed the hypothesis that matter was composed of tiny indivisible particles. Democritus also wrote on mathematical topics like geometry. He was born in 460 B.C. and died in 370 B.C.
Around 400 BC Democritus a Greek philosopher theorized that everything was composed of small indivisible particles he called atoms or "atomos".
Coining of the term "atom" and the idea that matter was composed of small, invisible, indivisible particles.
That matter was made up of indivisible particles -Apex
are rearranged during a chemical reaction.
Democritus, in the 5th century, proposed his version of atomism. States that all matter was composed of small indivisible particles called atoms.