The isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it.
What isotope is created?
Responses
Yttrium-72
Yttrium-72
Gallium-72
Gallium-72
Yttrium-41
Yttrium-41
Gallium-41
The correct response would be Yttrium-41.
To determine the isotope created when two neutrons are added to an atom with 31 protons and 39 neutrons, we need to add the number of protons and neutrons.
The initial number of protons is 31, and the initial number of neutrons is 39. Adding two neutrons to the atom gives:
31 protons + 39 neutrons + 2 neutrons = 31 protons + 41 neutrons
Therefore, the isotope created is Yttrium-41.
To determine the isotope created when two neutrons are added to an atom with 31 protons and 39 neutrons, we need to calculate the new number of neutrons.
Given:
Number of protons (Z) = 31
Number of original neutrons (N) = 39
Adding two neutrons to the atom, the new number of neutrons (N') is calculated by adding 2 to the original number of neutrons.
N' = N + 2
N' = 39 + 2
N' = 41
Therefore, the isotope created is the one with 31 protons and 41 neutrons.
Looking at the responses provided:
- Yttrium-72 has 72 nucleons, which does not match our calculation.
- Gallium-72 also has 72 nucleons, which does not match either.
- Yttrium-41 has the correct number of neutrons, matching our calculation.
- Gallium-41 has the correct number of neutrons, matching our calculation.
Therefore, the correct answer is either Yttrium-41 or Gallium-41.