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15 cards from this deck
Protons and neutrons
+1+1+1
000
−1-1−1
1×10−101 \times 10^{-10}1×10−10 metres
10,000 times smaller
In the nucleus
Ball of positive charge with electrons embedded
Alpha particles
Went straight through
Atom is mostly empty space
Energy levels or shells
James Chadwick
Number of protons and electrons
Sum of protons and neutrons
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