1.8 would be the top Sig fig
Answer: Potassium
Explanation: Potassium is the chemical element with 19 electrons, 19 protons and 20 neutrons.
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Answer:
The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.
Explanation:
The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.
