Atomos!

An atom is

• The biggest part of an element that has all the properties of that element

• The biggest part of an element that does not have all the properties of that element

• The smallest part of an element that has all the properties of that element

• The smallest part of an element that does not have all the properties of that element

The Greek word for "not to be cut" is:

• Gyro

• Atomos

• Alpha

• Delta

A model (in scientific terms) is:

• Someone who knows how to walk the catwalk

• a positively charged atom

• a Nissan

• a picture which uses familiar ideas to explain unfamiliar facts in nature

Select all the correct answers: The Greek Democritus:

• Said an atom is the smallest part of matter

• Said small hard particles are indivisible

• Atoms are infinite, always moving and capable of joining

• Atoms are made of some material, but different sizes and shapes

Who Said It Anyway?

Elements are composed of atoms, which are indivisible and indestructible:

• Dalton

• Thomson

• Rutherford

• Bohr

Who Said It Anyway?

All of atom's positively charged particles were contained in the nucleus.

• Dalton

• Thomson

• Rutherford

• Bohr

Who Said It Anyway?

An atoms was made of pudding-like positively charged material throughout which negatively charged electrons were scattered like raisins in pudding

• Dalton

• Thomson

• Rutherford

• Bohr

Who Said It Anyway?

Electrons move in definite orbits around the nucleus, much like planets orbit the sun

• Dalton

• Thomson

• Rutherford

• Bohr

Whose model is this?

• Dalton

• Thomson

• Rutherford

• Bohr

Whose model is this? (hint hint!)

• Dalton

• Thomson

• Rutherford

• Bohr