Atomic Theory Flashcards
Smallest piece of an element that maintains the identity of that element
Atom
Atomic Theory by John Dalton
All atoms is composed of atoms
Atoms of the same element are the same vice versa
Atoms combine in whole-number ratios to form compounds
Subatomic particles
Proton
Electron
Neutron
Represented by “e-“ and has negative charge
Electron
Massive with a a positive charge
Proton
Same mass as protons but has no charge
Neutron
Mass of proton and neutron
1.6 x 10^-27
Mass of electrons
9.1 x 10^-31
Proposed a nuclear model of the atom
Ernest Rutherford
The number of protons is equal to the identity of an atom which also known as
Atomic Number
Periodic table gives information about their __________, which are determined based in the ________ of the electrons.
Properties and Location
How is the periodic table arranged?
Based on atomic numbers of the elements
The protons are in the ________ and the electrons are __________ the _________
Nucleus, Outside, Nucleus
It is the location of address of the electrons
Quantum numbers
Refer to different location on the periodic table and different orientations of the electrons in the atom
Quantum numbers