Atomic theory and bonding

What type of bond is illustrated above?

• Metallic
• Ionic
• Covalent
• Wiggly

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A solid substance is an excellent conductor of electricity. The chemical bonds in this substance are most likely?

• ionic, because the valence electrons are shared between atoms
• covalent, because the valence electrons are mobile
• metallic, because the valence electrons are stationary
• metallic, because the valence electrons are mobile

Tags

NGSS.HS-PS1-3

Which compound would be a good conductor when in solution?

• aluminum

• sulfur dioxide

• ammonia

• sodium nitrate

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NGSS.HS-PS1-3

The name of Cu₃N₂ is

• copper (III) nitride
• copper (II) nitride
• copper nitride
• tricopper dinitride

Tags

NGSS.HS-PS1-2

The name of FeCl₂ is

• iron chloride
• iron (II) chloride
• iron (I) chloride
• iron dichloride

What ending is used for the names of negative ions formed when atoms gain (steal) electrons?

• ade
• ate
• ion
• ide

Tags

NGSS.HS-PS1-1

The atomic number of an element tells you what about that element? 

• number of ions
• number of valence electrons
• number of electrons 
• what is an element? 

Tags

NGSS.HS-PS1-1

An atom that has a net positive or negative charge called

• Cation 
• Ion
• Anion
• Proton 

How many valence electrons do elements in Group 2, the Alkaline Earth Metals, have?

• 1
• 2
• 6
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When Beryllim (Be²⁺) and fluorine (F^1-) combine in an ionic bond, the resulting formula will be

• BeF

• BeF₂

• Be₂F_

• Be₂F₁