The Structure of the Atom: Concept Map

≈ 25 min

Concept Map

Organise the vocabulary, quantities and relationships into a connected model.

This extension applies that lens specifically to The Structure of the Atom.

Every atom is built from three subatomic particles:

Particle	Charge	Relative mass	Location
Proton	$+1$	1	nucleus
Neutron	$0$	1	nucleus
Electron	$-1$	≈ 0 (about 1/1836)	orbits the nucleus

The nucleus is a tiny, dense core of protons and neutrons holding almost all the mass. Electrons move in the space around it in energy levels (shells). A neutral atom has equal numbers of protons and electrons, so the $+$ and $-$ charges cancel.

Chemistry — Grade 10 — Concept Map: Which particle carries a negative charge?

Proton

Neutron

Electron

Nucleus

Chemistry — Grade 10 — Concept Map: A neutral atom has 11 protons. How many electrons does it have?

Chemistry — Grade 10 — Concept Map: In which part of the atom are the protons and neutrons found? (one word)

Name the original topic being extended by this concept map lesson.

Which statement is the best evidence-led starting point for The Structure of the Atom: Concept Map?

Every atom is built from three subatomic particles: | Particle | Charge | Relative mass | Location | |---|---|---|---| | Proton | $+1$ | 1 | nucleus | | Neutron | $0$ | 1 | nucleus | | Electron | $-1$ | ≈ 0 (about 1/1836) | orbits the nucleus | The nucleus is a tiny, dense core of protons and neutrons holding almost all the mass. Electrons move i

Pure Substances and Mixtures

Elements and Compounds

A conclusion needs no observations, calculations or stated assumptions.