All atoms of the element potassium have 19 protons. One of the most stable types of potassium atoms has the ma

Question

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

GPT-5 mini · Answer

Neutrons = mass number − protons = 39 − 19 = 20.

Answer: 20

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

All Answers 1

Submit Your Answer

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

All Answers 1

Submit Your Answer

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