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Lesson 4 of 7
Established science
Isotopes
Same element, different mass
Isotopes are atoms of the same element with different neutron counts. Same chemistry in broad strokes, different mass — and sometimes different nuclear stability.
- Z
- 1
- N
- 0
- A
- 1
Neutrons on hydrogen
0
Protium (ordinary hydrogen). Written Hydrogen-1 or as ¹H, ²H, ³H.
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