Which statement about an atom is correct?(1 point)

Question

Responses

The electron has a negative charge and is found outside of the nucleus.
The electron has a negative charge and is found outside of the nucleus.

The neutron has a negative charge and is found in the nucleus.
The neutron has a negative charge and is found in the nucleus.

The neutron has no charge and is found outside of the nucleus.
The neutron has no charge and is found outside of the nucleus.

The proton has no charge and is found in the nucleus.

Answer 1

The correct statement about an atom is:

The electron has a negative charge and is found outside of the nucleus.

The other statements about neutrons and protons contain inaccuracies:

• Neutrons have no charge and are found in the nucleus.
• Protons have a positive charge and are found in the nucleus.

Answer 2

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)
Responses

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.
The model should show 27 protons and 27 neutrons.

The model should show 32 protons and 59 neutrons.

Answer 3

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

The model should show 27 protons and 32 neutrons.

Here's the reasoning:

• The atomic number (27) indicates that cobalt has 27 protons.
• The mass number (59) is the sum of protons and neutrons.
• To find the number of neutrons, subtract the number of protons from the mass number: 59 (mass number) - 27 (protons) = 32 (neutrons).