Unit 1, part A Review

The atomic number tells you the number of:

• Protons
• Neutrons
• Electrons
• Ions

The first level is filled with _____ electrons.

• 1
  1
• 2
• 3
• 4

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NGSS.HS-PS1-1

The second level is filled with ______ electrons.

• 2
• 4
• 6
• 8

The bonds which are made when electrons are shared are: 

• covalent
• ionic

The bonds which are made when electrons are transferred are:

• covalent
• ionic

When negative ions are attracted to positive ions, we call that bond:

• Covalent
• Ionic

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NGSS.HS-PS1-3

Water is held together with this type of bond:

• covalent
• ionic

NaCl (table salt) is held together with this type of bond: 

• Covalent
• Ionic

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NGSS.HS-PS1-3

carbon has an atomic number of 6.  It has ______ neutrons, on average:

• 4
• 6
• 12

Carbon has 6 protons.  It has how many electrons?

• 4
• 6
• 12

Tags

NGSS.HS-PS1-1