Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.
His theory contained five main propositions:
1. All matter is comprised of tiny, definite particles called atoms.
2. Atoms are indivisible and indestructible.
3. All atoms of a particular element share identical properties, including weight.
4. Atoms of different elements contain different mass. And
5. Atoms of different elements combine in fixed whole-number ratios when forming compounds.
The Bohr's model states that electrons in atoms move in circular orbits around a central nucleus and can only orbit stably in certain fixed circular orbits at a discrete set of distances from the nucleus. These orbits are associated with definite energies and are also called energy shells or energy levels.
Main Points of the Bohr Model
Electrons orbit the nucleus in orbits that have a set size and energy.
The energy of the orbit is related to its size.
The lowest energy is found in the smallest orbit.
Radiation is absorbed or emitted when an electron moves from one orbit to another.
I support the Bohr's model because it defines the atoms characteristics in a more precise and detailed manner compared to the first one which has some misconception about the nucleus.
Answers & Comments
Answer:
Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.
His theory contained five main propositions:
1. All matter is comprised of tiny, definite particles called atoms.
2. Atoms are indivisible and indestructible.
3. All atoms of a particular element share identical properties, including weight.
4. Atoms of different elements contain different mass. And
5. Atoms of different elements combine in fixed whole-number ratios when forming compounds.
The Bohr's model states that electrons in atoms move in circular orbits around a central nucleus and can only orbit stably in certain fixed circular orbits at a discrete set of distances from the nucleus. These orbits are associated with definite energies and are also called energy shells or energy levels.
Main Points of the Bohr Model
I support the Bohr's model because it defines the atoms characteristics in a more precise and detailed manner compared to the first one which has some misconception about the nucleus.