Which radioisotope has the fastest rate of

decay?

(1) 14C

(2) 37Ca

(3) 53Fe

(4) 42K

The correct answer to this question is (2) 37Ca. The radioisotope that has the fastest rate of decay is 37Ca. Radioisotope or also known as radioactive isotopes of a given element. Same number of protons but different number of neurons are present on different isotopes of the same element. They are considered as atoms that have unstable protons and neutrons combination.

The correct answer is 2. 37Ca.

The fastest rate of decay in radioisotope is 37Ca. Another name for radioisotope is radioactive of isotopes which are of given element.

The different number of neurons and the same number of protons are present on the same element with different isotopes. Radioisotopes are considered to have an unstable combination of neutrons and protons.