Develepmont Of Model Of Atom Flashcards
1
Q
Dalton thought atoms were ___ and that elements only had one type of atom
A
Hard spheres
2
Q
J.J. Thompson discovered the electron and described atoms like ___
A
Plum puddings
3
Q
___ and ___ did experiments showing that atoms could not be solid
A
Geiger and Marsden’s
4
Q
Rutherford found that the positive charge of an atom called the ___ and electrons orbit it. (Nuclear model)
A
Nucleus
5
Q
Niels Bohr suggested electrons orbit in ___
A
Shells
6
Q
James Chadwick discovered the neutron which has no charge and has the same ___ as a proton
A
Mass
7
Q
Before discovering the subatomic particles, elements were ordered by atomic ___
A
Weight.
8
Q
How are element arranged on the modern periodic table?
A
Increasing atomic number
