Compare the numbers of protons and neutrons of K-40 and Ar-40.?

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Compare the numbers of protons and neutrons of K-40 and Ar-40.?

Can Ar-40 change back to K-40? Explain your answer, pointing out what procedural part of the experiment supports your answer.

2007-12-17 08:41:36 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology

3 answers

Potassium has the symbol K and atomic number 19.
Potassium 40 has 19 protons and 21 neutrons.

Argon is designated by the symbol Ar. Argon has atomic number 18.
Argon 40 has 18 protons and 22 neutrons.

2007-12-17 08:47:44 · answer #1 · answered by DanE 7 · 2⤊ 1⤋

Number Of Neutrons In Argon

2016-10-17 00:56:00 · answer #2 · answered by ? 4 · 0⤊ 0⤋

Ar-40 is stable. It does not decay, therefore Ar-40 will not change into K-40

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2007-12-17 08:57:03 · answer #3 · answered by tlbs101 7 · 2⤊ 1⤋