Physical Science Bonding

The bonds that hold atoms together behave most like

• snap-together blocks.

• rubber cement.

• glue.

• flexible springs.

Atoms and ions are held together by

• nuclear bonds.

• physical bonds.

• stick bonds.

• chemical bonds.

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Why do elements bond?

• To be friends

• To create a new element

• To become stable

• To get bigger

What is a valence electron?

answer choices

• The sum of neutrons and protons.

• The number of electrons in the last shell.

• A type of bond.

• A popular compound

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What is the name for an ion with a positive charge?

• cation

• anion

• Onion

• union

Atoms sometimes form bonds to

• lose energy.

• give away neutrons.

• become more stable.

• give away protons.

Fluorine has 7 valence electrons. How many more electrons does it need to achieve a full outermost energy level?

 

 

•  

  a. 1

   

   

•  

  b. 3

   

• c. 7

   

• d. 10