Atoms & Molecules

Roughly, how many different types of atom are there?

• 1

• 10

• 100

• 1000

An element is made up from ​ (a)   of atom.

• only one kind
• several kinds
• two or more kinds
• random kinds

An example of an element is​ (a)   .

• oxygen
• water
• earth
• fire

An atom...

• ...cannot be imagined.

• ...cannot be broken down into a simpler chemical substance.

• ...can be seen with a powerful light microscope.

• ...is too small to be seen with a light microscope.

In the box, draw the particles in a piece of ice. Use circles for the particles and draw about twenty particles. It does not need to fill the square.

Answer explanation

particles should be neatly drawn in 2D,

they should be close together and in a regular arrangement

A molecule always consists of...

• two or more atoms bound together.

• different elements mixed together.

• three elements.

• different elements.

How many atoms does a molecule of carbon dioxide contain?

Mathematical Equivalence

ON

Atoms consist of (click all that apply)...

• electrons

• protons

• neutrons

• morons

• photons

A molecule is a compound if it contains two or more ​ (a)   elements.

• different
• coloured
• similar
• angry
• diffident

In the box, draw the particles in some liquid water. Use circles for the particles and draw about twelve particles. It should not fill the square.

Answer explanation

particles must be neatly drawn in 2D, they should be close together but not in any particular arrangement, I always think this is the hardest one to draw