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Thallium has 81 protons, 123 neutrons, and 81 electrons.
Thallium protons
- Protons = atomic number
From the periodic table, find the atomic number of thallium.
The atomic number of thallium is 81. Hence, thallium has a total of 81 protons.
Thallium neutrons
- Neutrons = atomic mass – atomic number
The atomic mass of thallium is 204.3833, so we’ll take the roundup value as 204. And the atomic number of thallium is 81.
Subtract the atomic number (81) from the atomic mass (204). Hence, thallium has a total of 204 – 81 = 123 neutrons.
Thallium electrons
- Electrons = atomic number
The atomic number of thallium is 81. Hence, thallium has a total of 81 electrons.
Next: Lead protons neutrons electrons
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External links
- https://material-properties.org/thallium-protons-neutrons-electrons-electron-configuration/
- https://valenceelectrons.com/thallium-protons-neutrons-electrons/
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