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What did john Dalton state in the atomic theory?

John Dalton believed that all elements are made of atoms and that atoms are identical if they are of the same element. He is the first one to have combined substances to make new substances through chemical reactions.


Who discovered the indivisible solid sphere model?

The indivisible solid sphere model, also known as the billiard ball model of the atom, was proposed by John Dalton in the early 19th century. He suggested that atoms are indivisible spheres that make up all matter and that they combine in simple whole number ratios to form compounds.


What did john Dalton describe atoms as?

John Dalton described an atom to be the smallest particle that is inside an element. The atom cannot be created or destroyed. He also mentioned that atoms of different elements can combine to form a chemical compound.


Who described atoms that they are small hard particles?

John Dalton. N.B.: John Dalton [born: September 6, 1776; died: July 27, 1844, at age 67] was an English chemist and physicist who claimed matter was made up of tiny particles and that these particles were identical for any given kind of matter. Moreover, he claimed these particles were indivisible and could neither be created nor destroyed in any chemical process, only be altered in the manner they were grouped.


How did the discovery of electrons make it necessary to change one of Dalton's postulates?

The discovery of electrons showed that atoms were not indivisible as Dalton had proposed, but instead contained subatomic particles. This led to a revision of Dalton's postulate that atoms were the smallest, indivisible particles, as it became clear that atoms could be divided into even smaller components such as electrons.

Related Questions

Who is the man that proposed that atoms join together to make up compounds?

john dalton


What is John Dalton remember for?

Amongst other things, John Dalton thought of matter as being made up of particles. His particle theory is sometimes referred to as the 'billiard ball model' since he thought of atoms as being indivisible, unlike what we know nowadays. He also worked on the chemical formulae of different substances.


What did john Dalton state in the atomic theory?

John Dalton believed that all elements are made of atoms and that atoms are identical if they are of the same element. He is the first one to have combined substances to make new substances through chemical reactions.


Who discovered the indivisible solid sphere model?

The indivisible solid sphere model, also known as the billiard ball model of the atom, was proposed by John Dalton in the early 19th century. He suggested that atoms are indivisible spheres that make up all matter and that they combine in simple whole number ratios to form compounds.


What did john Dalton describe atoms as?

John Dalton described an atom to be the smallest particle that is inside an element. The atom cannot be created or destroyed. He also mentioned that atoms of different elements can combine to form a chemical compound.


Who proposed each element is composed of extremely small particles called atoms?

The concept of atoms was proposed by the Greek philosopher Democritus around 400 BCE. However, the modern atomic theory was developed by John Dalton in the early 19th century, which expanded on the idea of atoms as indivisible particles that make up all matter.


Which two of the three statements that make up Dalton's atomic theory are no longer regarded as true as stated by Dalton's?

All the atoms in elements are not a like


What contributions did John Dalton make to chemistry?

John Dalton was an English scientist in the eighteenth century. He developed atomic theory and published a table of atomic weights.


Where did John Brown make his first public statement?

Where did John Brown make his first public statement?


Which discovery did j.j Thomson make that improved upon Dalton atomic theory?

that atoms can be broken


Who described atoms that they are small hard particles?

John Dalton. N.B.: John Dalton [born: September 6, 1776; died: July 27, 1844, at age 67] was an English chemist and physicist who claimed matter was made up of tiny particles and that these particles were identical for any given kind of matter. Moreover, he claimed these particles were indivisible and could neither be created nor destroyed in any chemical process, only be altered in the manner they were grouped.


Who discovered atoms are not to tiny to divide?

John Dalton, an English chemist, proposed the idea that atoms are indivisible, or too small to be divided, in the early 19th century. This theory laid the foundation for modern atomic theory and greatly influenced our understanding of the building blocks of matter.