Chemistry, 17.09.2019 10:10, hugo211

All atoms of the element potassium have 19 protons. one of the most stable types of potassium atoms has the mass number 39. how many neutrons make up one of these potassium atoms?
-19
-20
-38
-58

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All atoms of the element potassium have 19 protons. one of the most stable types of potassium atoms...

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All atoms of the element potassium have 19 protons. one of the most stable types of potassium atoms has the mass number 39. how many neutrons make up one of these potassium atoms? -19 -20 -38 -58

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All atoms of the element potassium have 19 protons. one of the most stable types of potassium atoms has the mass number 39. how many neutrons make up one of these potassium atoms?
-19
-20
-38
-58