J.J Thomson

Early Life

1

Where was J.J. Thomson born?

Manchester

2

What year was J.J. Thomson born?

1856

3

what did he do for a living?

English physicist

Discoveries

1

What particle did Thomson discover?

Electrons

2

What experiment involved lead to him discovering electrons

cathode rays

3

What model did he make?

Plum Pudding

Electron

1

Location

Outside the nucleus in electron clouds/shells

2

Mass

1

3

what charge is an electron? 

Negative (−1)

Plum Pudding Model

1

What is a Plum Pudding

its a dessert and also Thompson nickname to his atomic model.

2

Why was it called “plum pudding”?

Because it looked like chocolate chips (electrons) stuck in a pudding (positive charge)

3

what idea did the plum puding model introduce 

that there are smaller structures than than atom