Chemistry Quiz

What is the atomic mass of Fluorine?

• 9
• 18
• 17
• 19

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

All matter is made of _______?

• energy

• atoms

• electrons

• compounds

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 

Which of the following is a subatomic particle with a neutral (no charge) that is found in the nucleus of an atom?

• Electron

• Proton

• Neutron

• Quark

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

In which region would the most reactive elements be found? 

• 1
• 4
• 5
• 3

In which region would the least reactive elements be found? 

• 1
• 4
• 3
• 5