Respuesta :
Answer:
A. The model should show 27 protons and 32 neutrons.
Explanation:
Cobalt has a mass number of 59 and an atomic number of 27. A student wants to create a model of a cobalt atom. Which statement about the model is correct?
A. The model should show 27 protons and 32 neutrons.
B. The model should show 59 protons and 27 neutrons.
C. The model should show 27 protons and 27 neutrons.
D. The model should show 32 protons and 59 neutrons.
Step 1: Given data
Mass number of cobalt (A): 59
Atomic number of cobalt (Z): 27
Step 2: Calculate the number of neutrons (n⁰) in 1 atom of cobalt
The atomic number is the number of protons in an atom while the mass number is the sum of protons and neutrons in an atom. We can calculate the number of neutrons using the following expression.
n⁰ = A - Z
n⁰ = 59 - 27 = 32
Step 3: Choose the correct option
The atom of cobalt has 27 protons (Z = 27) and 32 neutrons. The correct option is A.
The study of chemicals is called chemistry.
The correct answer is A.
The question is incomplete, kindly provide it with the option for better understanding.
The atomic number of the cobalt is 27 which is mentioned in the question. To find the other aspect we have the solve the equation.
The data is given as follows:-
- The mass number of cobalt (A): 59
- Atomic number of cobalt (Z): 27
The atomic number is the number of protons in an atom while the mass number is the sum of protons and neutrons in an atom. We can calculate the number of neutrons using the following expression.
[tex]n^o = A - Zn^o = 59 - 27 = 32[/tex]
The atom of cobalt has 27 protons (Z = 27) and 32 neutrons.
Hence, The correct option is A.
For more information, refer to the link:-
https://brainly.com/question/25305623