LESSON 1.1CHEMISTRY I: GENERAL CHEMISTRY

ATOMS

Have you ever wondered what things are made out of? I mean, what makes a cake a cake besides deliciousness? To begin answering these questions we must first engage in a thought experiment. How many times can you rip a piece of paper in half and still have paper?

HALVINGS: 0 / 30 ZOOM
ACTUAL SIZE210.0 mm

// SCALE REFERENCE

SHEET OF PAPER

Sheet of paper

A standard A4 sheet. Rip it in half — you still have paper.

PAPERATOM
SHEET OF PAPER
210 mm
THUMBNAIL
26 mm
SESAME SEED
3.3 mm
HUMAN HAIR
0.41 mm
RED BLOOD CELL
51 μm
BACTERIUM
6.4 μm
VIRUS
800 nm
LARGE PROTEIN
100 nm
DNA STRAND
12.5 nm
ETHANE MOLECULE
1.6 nm
CARBON ATOM
~154 pm