Matter Unit Test - Practice

Which letter best represents the proton(s)?

• A
• B
• C

Which letter best represents the electron(s)?

• A
• B
• C

Which letter best represents the neutron(s)?

• A
• B
• C

Which element does this model of an atom represent?

• Lithium
• Nitrogen
• Boron
• Carbon

Which mathematical equation best represents atomic mass?

• number of protons + number of neutrons
• number of protons + number of electrons
• number of electrons + number of energy levels
• none of these

Look at the periodic table. One atom of atomic number 60 has how many neutrons?

• 60
• 144
• 84
• none of these

Look at the periodic table. One atom of Holmium (Ho) has how many electrons?

• 165
• 67
• 98
• None of these

Look at the periodic table. One atom of Chlorine (Cl) has how many protons?

• 35
• 18
• 17
• none of these

Which number best represents the atomic mass of Scandium (Sc)?

• 21
• 3
• 45
• 4

Which element symbol is found in Group 1, Period 3?

• Sc
• Na
• Sodium
• Scandium