Covalent bonding

How many electrons should Lithium have around its Lewis dot model?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

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

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

Tags

NGSS.MS-PS1-1

If electrons are shared unequally then the bond is....

• Non-polar covalent
• Ionic
• Non-polar ionic
• Polar covalent

Which is the correct structure for NH₃?

Pictures correspond with a-d.

• Option A.

• Option B.

• Option C.

• Option D.

In the correct Lewis structure for water, how many unshared pairs of electrons will oxygen have?

• 1
• 4
• 3
• 2

Which of the following is the correct LD Diagram for Hydrogen Cyanide, HCN?

• A

• B

• C

• D

Is Hydrogen considered a metal or a non-metal?

• Metal
• Non-metal

Tags

NGSS.HS-PS1-1