The theory of Democritus held that everything is composed of “atoms,
” which are physically, but not geometrically, indivisible
; that between atoms, there lies empty space; that atoms are indestructible, and have always been and always will be in motion; that there is an infinite number of atoms and of kinds of atoms, …
What are the main points to Democritus theory of atoms?
According to Democritus’ atomic theory, the universe and all matter obey the following principles:
Everything is composed of “atoms”, which are physically, but not geometrically, indivisible
.
Between atoms, there lies empty space
.
Atoms are indestructible
.
What did Aristotle and Democritus say about atoms?
Democritus. … Aristotle disagreed with Democritus and offered his own idea of the composition of matter. According to Aristotle, everything was composed of four elements:
earth, air, fire, and water
. The theory of Democritus explained things better, but Aristotle was more influential, so his ideas prevailed.
What did Democritus say about the atom quizlet?
Democritus (460-370 B.C.): All matter can be divided into indivisible atomos. Democritus believed
that everything in the universe was composed of atoms, which were themselves microscopic and indestructible
. Aristotle was an influential Greek philosopher who lived between 384-322 B.C.
How was Democritus description of atoms limited?
He held that atoms were
the tiniest of particles, too small to be perceived by the senses
, of which all matter was composed, and that the atoms differed in size, shape, and mass.
What did Aristotle find out about atoms?
Aristotle, one of the most influential people of his time, described all matter as being composed of the “four basic elements” fire, earth, air and water. All matter is composed of fire, wind, earth, and water!
All matter is composed of tiny indivisible entities called atoms
!
Did Aristotle believe in atoms?
Aristotle did not believe that matter
was made up of tiny particles called atoms, but rather matter up of five basic elements, earth, water, air, fire, and ether.
Who discovered the atom?
The idea that everything is made of atoms was pioneered by
John Dalton
(1766-1844) in a book he published in 1808. He is sometimes called the “father” of atomic theory, but judging from this photo on the right “grandfather” might be a better term.
What is a fun fact about Democritus?
He was
best known for the development of the most accurate early atomic theory of the universe
. He is also known as ‘the Laughing Philosopher’ as he was often cheerful while at work. It is believed that Democritus was born around 460 BCE in Abdera, Thrace. He studied under Leucippus in Thrace.
What was the main problem with Democritus idea of the atom?
2,500 years ago, Democritus suggested that
all matter in the universe was made up of tiny, indivisible, solid objects he called “atomos
.” However, other Greek philosophers disliked Democritus’ “atomos” theory because they felt it was illogical.
Who said atoms contain mostly empty space?
In 1911, a British scientist named
Ernest Rutherford
discovered that an atom is mostly empty space. He concluded that the positively charged particles are contained in a small central core called the nucleus.
What was John Dalton’s view of the atom?
A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2)
All atoms of the same element are identical; different elements have different types of atom
. (3) Atoms can neither be created nor destroyed.
Why did Aristotle reject Democritus idea of the atom?
Believed atoms were mechanically bound. Aristotle: He rejected Democritus atomic theroy and
didn’t think atoms move through empty spaces because he didn’t think that empty spaces existed
. He believed that all matter consisted of four elements.
How did the concept of an atom evolve?
Greek Origins
The idea that all matter is made up of tiny, indivisible particles, or atoms, is believed to have originated with
the Greek philosopher Leucippus of Miletus and his student Democritus of Abdera in the 5th century B.C.
(The word atom comes from the Greek word atomos, which means ? indivisible.?)
What was the first concept of an atom?
The concept of the atom (Greek: atomos, “indivisible”), an indivisible particle of matter, goes back to ancient Greece and a man named Democritus, a rival of Aristotle. Democritus held that
all matter could be subdivided only until some finite particle was reached
.
What was Democritus model called?
This fundamental or basic unit was what Democritus called
an atom
. He called this the theory of the universe: All matter consists of atoms, which are bits of matter too small to be seen.
