Chemistry 8.5A

Calculate the atomic mass of the atom represented above.

• 11
• 12
• 23
• 34

What number indicates the nucleus?

• 1
• 2
• 3
• 4

Where is most of the mass in an atom located?

• in the nucleus
• in the protons
• in the neutrons
• in the electrons

What number indicates a proton?

• 1
• 2
• 3
• 4

The particles with no charge in an atom are the _______.

• electrons
• neutrons
• protons
• protons and neutrons

 What is the mass number of this element?

• 5
• 27
• 32
• 59

12. How many protons are in the neutral atom shown below?

• 8
• 22
• 12
• cannot be determined from the information given

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons

The negatively charged particles of an atom are the ______.

• electrons
• protons
• neutrons
• protons & neutrons

What is the atomic mass of "F"

• 9
• 18
• 17
• 19