Lewis Structures

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

Hydrogen needs _____ electrons in its valence shell to be stable.

• 4
• 6
• 8
• 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Three pairs of electrons are shared in a

• Single bond
• Double bond
• Triple bond

Tags

NGSS.MS-PS1-1

A covalent bond is

• a bond that shares electrons metallicaly
• A bond that shares electrons with non metals
• Metalloids bonding
• metals and nonmetals bonding

Tags

NGSS.MS-PS1-1

How many electrons can be used in the Lewis Structure for : NO₃ -

• 23
• 20
• 18
• 24

How many valence electrons are in Phosphorus?

• 15
• 4
• 5
• 31

Tags

NGSS.HS-PS1-1

How many electrons does each line indicate are shared?

• 1
• 2
• 3
• 4

For carbonate ions, how many resonance structures can be drawn ?

• 2
• 3
• 4
• 5

For carbonate ions, what is the bond strength between C and O

• C-O (single bond)
• C=O (double bond)
• C≡O (triple bond)
• C-O(between single and double bond)

Tags

NGSS.HS-PS1-2

How many resonance structures for NO₃^- ion?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-2