Chemistry Basics Review

Electrons have what charge? 

• Positive +
• Negative -
• Neutral (No charge)

A cation (+) is formed when a neutral atom ________ an electron. 

• Loses 
• Gains 

Which part of an atom has a positive + charge? 

• Proton 
• Neutron
• Electron 
• Atomic Nucleus 

The number of protons and electrons of an element... 

• is the atomic mass.
• is the atomic number.
• is the element symbol.

Solute + Solvent =

• Compound 
• Molecule 
• Solution 
• Unicorn 

A bond where electrons are shared between atoms. 

• Ionic Bond
• Covalent Bond

The amount of energy that needs to be absorbed to start a chemical reaction. 

• Enzyme Energy
• Catalyst Energy 
• Activation Energy 
• Chemical Energy 

A bond where electrons are transferred between atoms. 

• Covalent Bond  
• Ionic Bond 
• Hydrogen Bond

The smallest particle of any particular type of matter is known by which of the following terms?

• Compound
• Atom
• Chemical
• Element

Burning a piece of paper 

• Chemical Change 
• Physical Change