Karteikarten
Chemistry
Karten in diesem Stapel (9)
- 1What is an atom ?-It's the smallest piece of a substance;
- - 2What was the name of the scientist which though atoms are like snooker balls?John Dalton;
- 3What is an compound ?when two or more atoms are combined together.
- 4What did JJ Thompson think of atoms ?he realised that atoms combine negative charges (electrons).
- 5What was the name of the model which JJ Thompson made ?The plum pudding.
- 6What steps do you need to take in an investigation ?Ask, Explain, Test, Check
(All elepghants terrefy cheetahs) - 7What is static electricity ?It's the transfer of negative charges ( Electrons) from one object to another.
- 8What was Rutherford's Model of an atom ?In the atoms, there were lots of space. The atoms contained a nucleus and electrons ( Negative Charges).
- 9What was Rutherford's test to see that he was right ?Rutherfood had made a line of atoms which were 1 atom thick. He rolled balls of gold foil and saw that same atoms were reflected, some went through and some bounced of. That ment that there had to be something which pushed the electrons away from each other.