The Periodic Table Flashcards
1
Q
What did Bohr do?
A
Thought of electron shells
2
Q
What are Dalton’s atoms
A
Different spheres
3
Q
What did Rutherford do?
A
Shot particles through a gold sheet to find atoms are mainly space
4
Q
What did Dobereiner do?
A
He put elements in groups of 3 called triads. The groups of 3 have similar chemical properties and the middle of the groups had the average mass of the other 2
5
Q
What did Newlands do?
A
Put atoms in order of atomic weight and saw each 8th element had similar properties. He called this the law of octaves
6
Q
List some physical properties
A
Lustrous, Hard, Dense, Tensile Strength, High Melting/Boiling Point, Conductor of Heat, Conductor of Electricity
