Atomic Structure

How many protons are in a Carbon atom?

(Type a whole number only!)

What is the charge of a neutron, and what is its location in an atom?

• Neutral charge, located in nucleus.

• Negative charge, located in nucleus.

• Neutral charge, located in the orbitals/cloud.

• Negative charge, located in the orbitals/cloud.

What is the charge of a proton, and what is its location in an atom?

• Neutral charge, located in nucleus.

• Positive charge, located in nucleus.

• Neutral charge, located in the orbitals/cloud.

• Positive charge, located in the orbitals/cloud.

What is the charge of an electron, and what is its location in an atom?

• Negative charge, located in nucleus.

• Neutral charge, located in nucleus.

• Negative charge, located in the orbitals/cloud.

• Neutral charge, located in the orbitals/cloud.

The mass number of an atom is the number of ...

• Electrons plus Protons

• Neutrons plus Electrons

• Protons plus Neutrons

• neutrons

What is the average mass of (Al) Aluminum, (atomic number 13) ?

(Use your periodic table!)

If an atom of (Mg) Magnesium (atomic # 12) has 13 neutrons, what is its mass?

(Use your periodic table!)

In an atom of boron (B) (atomic #5) has a mass number of 11 how many neutrons are present?

Type a whole number!

(Use your periodic table!)

Protons have a mass of ...

• 0 amu

• 1 amu

• 2 amu

• 3 amu

Electrons have a mass of ....

• 0 amu

• 1 amu

• 2 amu

• 3 amu