history of atom

history of atom

Read through each slide. There will be a comprehension question(s) after each scientist so read carefully before you move on

As you read each slide

• complete the note taking sheet

• include the scientists name, description of their contribution/ experiments

• name / draw any models created by scientist

Fill in the Blank

Democritus thought matter was made of indestructible particles called

Multiple Select

Which of the following is correct about Dalton's theory? Check ALL that apply

• he created a spherical model of the atom

• he said atoms can be broken down further

• atoms can combine to form compounds

• atoms of the same element are identical, but atoms of different elements are different

Multiple Choice

What conclusion did Thomson make?

• cathode ray tubes are cool

• matter must contain negatively charged particles

• matter must contain positively charged particles

Multiple Choice

What food did Thomson's model remind him of

• pineapple

• round grape

• plum pudding

Open Ended

Summarize Rutherford's gold foil experiment in your own words

Fill in the Blank

Rutherford created the planetary model of the atom and discovered what region?

Fill in the Blank

In Bohr's model, electrons _______ the nucleus in energy shells. Electrons can move between energy shells when they gain or lose ______

(type answers with comma in between)

Multiple Choice

In the quantum mechanical model, there is a higher chance of finding electrons when they are _____

• far away from the nucleus

• close to the nucleus