Basic Sci Matter and Chem Test

What is the atomic number?

• The number of protons in an atom
• The number of protons plus neutrons in an atom
• The number of nutrons in an atom

What is the atomic mass?

• The number of protons in an atom
• The number of protons plus neutrons in an atom
• The number of nutrons in an atom

Which two particles are there ALWAYS the same number of?

• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons

All protons, neutrons, and electrons have___

• The same location in an atom
• The same size and weight
• Different charges

These are vertical columns on the periodic table

• Nucleus
• Group
• Period

These are horizontal columns on the periodic table

• Nucleus
• Group
• Period

These tell how many valence electrons an atom has

• Nucleus
• Group
• Period

These tell how many outer shells an atom has

• Nucleus
• Group
• Period

How many electrons can the first ring (shell) hold?

• 1
• 2
• 4

A Bohr's diagram shows what?

• An atom with it's protons, nutrons, and electrons
• An atom with it's correct atomic mass
• An atom in the correct location on the periodic table