select the correct answer. the atomic number of krypton (kr) is 36, and its mass number is 84. how many…

select the correct answer. the atomic number of krypton (kr) is 36, and its mass number is 84. how many neutrons does it have? a. 18 b. 36 c. 48 d. 72

select the correct answer. the atomic number of krypton (kr) is 36, and its mass number is 84. how many neutrons does it have? a. 18 b. 36 c. 48 d. 72

Answer

Explanation:

Step1: Recall the formula

The formula for calculating the number of neutrons is $n = A - Z$, where $n$ is the number of neutrons, $A$ is the mass - number, and $Z$ is the atomic number.

Step2: Substitute the values

Given that $A = 84$ and $Z = 36$, then $n=84 - 36$.

Step3: Calculate the result

$84-36 = 48$.

Answer:

C. 48