The structure of the atom (AQA GCSE Physics): Flashcards

$+1$ (positive)

$1$

$0$ (no charge)

$-1$ (negative)

$0$ (almost no mass)

Protons and neutrons

Orbits/energy levels around nucleus

Positive (contains protons)

In the nucleus

$10^{-10}$ metres

$10^{-15}$ metres

100,000 times smaller

Equal protons (+) and electrons (-) cancel out

Gains energy, moves to higher energy level

Loses energy, drops to lower energy level