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What element has 19 protons and 20 neutrons?

Understand the Problem

The question is asking about an element in the periodic table that has a specific number of protons and neutrons. The element can be identified based on the number of protons, which determines its atomic number.

Answer

Potassium (K)

The element with 19 protons and 20 neutrons is Potassium (K).

Answer for screen readers

The element with 19 protons and 20 neutrons is Potassium (K).

More Information

Potassium is represented by the symbol K and is commonly found in nature. It plays essential roles in biological systems, particularly in cellular functions.

Tips

Common mistakes include confusing the atomic number with the mass number or misidentifying the element. Remember, the atomic number (number of protons) uniquely defines the element.

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