Question

o additional details were added for this assignment. the isotope of an atom containing 40 protons and 51 neutrons suddenly has two neutrons added to it. what isotope is created?
zirconium-53
antimony-93
zirconium-93
antimony-53

Explanation:

Step1: Determine the element from protons

The number of protons determines the element. An element with 40 protons is Zirconium (atomic number 40).

Step2: Calculate new number of neutrons

Original neutrons = 51, add 2 neutrons: $51 + 2 = 53$ neutrons.

Step3: Calculate mass number

Mass number = protons + neutrons = $40 + 53 = 93$.

Step4: Identify the isotope

The isotope is Zirconium - 93 (since element is Zirconium and mass number is 93).

Answer:

C. Zirconium-93