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?(1 point)

Question

Responses

The model should show 32 protons and 59 neutrons.
The model should show 32 protons and 59 neutrons.

The model should show 59 protons and 27 neutrons.
The model should show 59 protons and 27 neutrons.

The model should show 27 protons and 32 neutrons.
The model should show 27 protons and 32 neutrons.

The model should show 27 protons and 27 neutrons.

Answer 1

The correct statement about the model of a cobalt atom is:

The model should show 27 protons and 32 neutrons.

Here's why:

• The atomic number (27) indicates the number of protons in the atom, which is 27.
• The mass number (59) is the total number of protons and neutrons combined.
• To find the number of neutrons, subtract the number of protons from the mass number: 59 (mass number) - 27 (protons) = 32 neutrons.

Therefore, the model should show 27 protons and 32 neutrons.