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IrinaVladis [17]
2 years ago
15

A student says: Potassium (K) always has 20 protons. Explain why the student is incorrect.

Chemistry
1 answer:
Katen [24]2 years ago
5 0

Explanation:

19

Potassium/Atomic number

This tells you that potassium has 19 protons and - since the number of protons is the same as the number of electrons- also 19 electrons. To find out the number of neutrons you have to look at the atomic mass or weight of the element. This can also be found in the periodic table.

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3 0
3 years ago
Please help!!! ASAP
bekas [8.4K]

Na 2Co3

1*23=23. 2*12=24. 6*16=96

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3 years ago
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Charra [1.4K]

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2 years ago
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hopes this helps..!
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