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How has Dalton's model of the atom changed to todays model of the atom?
Wiki User
∙ 13y ago
Matter is made up of atoms, atoms cannot be divided into smaller pieces, all the atoms of an element are exactly alike, and different elements are made of different kinds of atoms. The nucleus, electrons in the electron cloud is the today's model and the past model is matter divided into smaller pieces.
Wiki User
∙ 13y ago
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What discovery lead the scientists to question john daltons model of the atom and to favor jj Thomsons model?
JJ Thomson's discovery of electrons indicated that atoms were not indivisible.
The weight in daltons of one atom of an element is?
density
Why has the model of the atom changed over time?
Improved knowledge of the atom via new experiments and development of new theories (e.g. quantum mechanics).
What did JJ Thomson call his model of the atom?
Plum-pudding model of atom.
What was the first model of the atom was developed through?
The first model of the atom was developed by Thomson.
Daltons model of an atom is best described as?
It was commonly described as a Solid sphere
How is Tho masons model different from Daltons?
Thomsons model (plum pudding model of negatively charged particles in a positive soup) differed from Daltons model. Dalton hypothesised that atoms were indivisible, the word atom comes from the Greek atomos cannot be cut)
Did Daltons model of the atom include protons neutrons and electrons inside the atoms?
no, because according to him an atom is a tiny indestructable sphere with mass on it.
Which event would be impossible to explain by using John Daltons model of the atom?
A Dalton's model of atom doesn't exist. Dalton principles are not in agreement with the discovery of isotopes and nonstoichiometric compounds.
Why was daltons model of the atom changed after Thompson experiment?
John Dalton's atomic theory indicated that atoms were indivisible spheres. When JJ Thomson did his work with cathode ray tubes, he discovered that atoms contain electrons, which meant that the atom is not indivisible, that there are smaller particles within
How did thompsons experiment change daltons atomic model?
thomas discovered that the atom contained smaller particals called electrons
What discovery lead the scientists to question john daltons model of the atom and to favor jj Thomsons model?
JJ Thomson's discovery of electrons indicated that atoms were not indivisible.
The weight in daltons of one atom of an element is?
density
What are some models that changed over the years?
the atom model
The 2 protons in the helium atom have a totalof how many daltons?
2.
How has john daltons theories change our understanding of the atom?
ask jimmy lyons
Why have scientist change their ideas on the model of the Atom?
There has been more and more observations about the atom that has changed it since then. They revised it to explain the observations.
