Chemistry Failure Remediation

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 

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

How many protons does this atom have?

• 2.5
• 6
• 5
• 10.811

What part of the atom is the arrow pointing to?

• nucleus
• proton
• electron shell
• electron

If the number of protons equal the number of _____, the atom will have no charge

• protons
• neutrons
• electrons
• nucleus

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical

What subatomic particles would you find in the nucleus of an atom?

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