Chemical Bonds - AP Chem

The octet rules states that most elements want to have _____ valence electrons.

• 2

• 4

• 6

• 8

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

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NGSS.HS-PS1-1

Atoms are held together by ____________.

• molecules
• chemical bonds
• chemical reactants
• electrons

Why does an atom tend to chemically bond with another atom?

• To become more stable

• To remain on its present state

• To maintain its energy

• To decrease its stability

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NGSS.HS-PS1-1

NGSS.HS-PS1-4

Chlorine and Fluorine are both very electronegative, as they are both missing a single electron from their valence energy level.  Why is Fluorine more electronegative than Chlorine? 

• Fluorine has less energy levels.
• Chlorine has more electrons in its outer shell
• Fluorine has more protons.
• None of these

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

How are covalent bonds formed?

• Sharing of electrons
• Transfer of electrons

Covalent bonds are between...

• two or more nonmetals
• sodium and chlorine
• metals and metals
• metals and nonmetals

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NGSS.MS-PS1-1

Which of the following describes covalent bonds?

• Bonds form because of opposite charges

• electrons are shared to fill outer electron shells

• Electrons are transferred between atoms

• Covalent bonds are magical

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NGSS.HS-PS1-2

Ionic bonds are between...

• nonmetals and nonmetals
• carbon and oxygen
• metals and nonmentals
• hydrogen and chlorine

For metals (groups 1-3), its easier to _____ electrons to have a full outer shell.

• gain

• lose

• share

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NGSS.MS-PS1-5