Diagnostic test

Which subatomic particle has a positive (+) charge?

• Neutron
• Proton
• Electron

Where is the nucleus located in an atom?

• Near the electron shells/levels
• Near the center of an atom

The Atomic number is known as the _______

• Number of electrons in an atom

• Number of Protons in an atom

• Number of neutrons in an atom

• Number of Protons and electrons in an atom

What is the Atomic Mass Number of the element mentioned above

• 12

• 6

• C

• 16

What does the atomic mass tell you?

• Basically,the number of electrons and protons

• The number of neutrons and electrons

• Basically, the number of protons and neutrons

• The number of protons and atomic number.

What does the 6 represent?

• atomic mass

• atomic number

• number of neutrons

• chemical symbol

What is the mass number and name of an element with 8 protons and 8 neutrons?

• 16 - Carbon
• 16 - Oxygen
• 24 - Oxygen
• 8 - Neon

What is the atomic mass of Neon?

• 10
• 30
• 10.18
• 20.18

Calculate the number of iron atoms in an iron nail.

• 6.10 x 10^22
• 3.36 x 10^25
• 1.42 x 10^23
• 6.023 x 10^25

What do we call the SI unit for amount of a substance?

• Avogadros number
• kilogram
• mole
• liter