Atomic Structure, Isotopes, Conversions Re-assessment

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

the central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

How many neutrons in C-14?

• 6
• 7
• 14
• 8

What quantities vary between isotopes of an element?

• protons, electrons, and atomic mass
• protons, electrons, and atomic number
• neutrons and electrons
• neutrons and atomic mass

How many protons does an atom of Sodium (Na) have if the charge is +2

• 9

• 10

• 11

• 12

What is an isotope? 

• A charged atom
• An atom with different amounts of neutrons
• An atom with different amounts of protons
• A neutral atom

How many neutrons does an Iodine-133 isotope have?

• 80
• 133
• 53
• 77

What is the atomic mass of the pictured isotope?

• 17
• 35
• 18
• What a "clorious" isotope!

Mrs. Keenan's dog, Buster, weighs 12 pounds. What is Buster's weight in ounces? 16oz = 1 pound

• 180 ounces

• 25 ounces

• 208 ounces

• 192 ounces