Physics I / Representations from particles to formulas

Practice question · Put in order

Order the levels of chemical representation from smallest (sub-atomic) to largest (macroscopic).

Macroscopic: observable quantities in grams, moles, litres
Atomic/ionic: individual atoms or ions (e.g., Na⁺, Cl⁻)
Sub-atomic: electrons, protons, and neutrons
Molecular/formula: chemical formulas and equations ( $H_{2}$ O, NaCl)

Hints

Order by physical size, working from inside the atom outward.
The macroscopic level is what you could weigh on a balance.

Show the answer

Sub-atomic: electrons, protons, and neutrons
Atomic/ionic: individual atoms or ions (e.g., Na⁺, Cl⁻)
Molecular/formula: chemical formulas and equations ( $H_{2}$ O, NaCl)
Macroscopic: observable quantities in grams, moles, litres

Why

Moving between representation levels requires Avogadro's number (particle ↔ mole) and molar mass (mole ↔ gram).

Read the lesson: Representations from particles to formulas →

Practise Representations from particles to formulas

The app has 8 more questions on this lesson, and keeps your place in the course. Physics I is free to start.

Start Physics I free Get it onGoogle Play

More questions on Representations from particles to formulas