CHEM Test 6 (9th) 21-22

Democritus suggested that atoms were particles that can be broken

• True

• False

Atom means

• with a division

• without a division

• multiple division

• Thomson Atomic Model

• Dalton Atomic Model

• Bohr Atomic Model

After Dalton, it was discovered that subatomic particles existed in every atom.

• True

• False

• Schrodinger Atomic Model

• Thomson Atomic Model

• Dalton Atomic Model

Choose the correct limitation of the Thomson's Atomic Model

• there is no empty space between electrons and protons because of the Plum Pudding Atomic Model

• there is too much empty space between electrons and protons because of the Plum Pudding Atomic Model

• none of the above

Rutherford proved that there is a huge space between the nucleus and the electrons

• True

• False

Explain Rutherford's Experiment

In Rutherford's experiment:

• the deflection of very few alpha particles shows that the atom is mainly empty space

• there were no reflection of any alpha particles

• none of the above

In Rutherford's experiment the complete rebound of few alpha particles shows that

• the nucleus is very soft and dense

• the nucleus is very hard and dense

• none of the above