1.3 Flashcards
What was Dalton’s first interest?
The gases that make up the earths atmosphere.
What makes up an atom?
Protons, neutrons, and electrons
What is Dalton’s atomic theory?
All matter is made up of very small particles called atoms.
Atoms can not be created or destroyed or divided into smaller particles.
All of the atoms of the same element are identically in mass and volume.
Compounds are created when atoms of different elements link together in definite properties.
What was J.J Thomsons model.
The raisin bun model.
What did JJ Thomsons discover?
He discovered electrons.
What did Rutherford discover?
The nucleus. And what was inside the protons and the neutron.
What did Neil’s Bohr discover.
The electro shells using the Bohr diagrams.
What are subatomic particles?
Protons, neutrons and electrons.
What subatomic particles has the most mass?
Protons and neutrons.
What occupies the majority of the atom?
The electronic shells.
Who said this: atoms cannot not be created or destroyed?
Dalton.
Who said this: electrons occupy specific energy levels or shells?
Bohr
Who said this: most of the mass I am atom is occupied by empty space?
Rutherford.
All matter is. Are up of tiny particles called atoms.
Dalton.
Who said this: Atoms of the same element are identical?
Dalton
