Lewis Dot Structures

What is the correct Lewis Dot Structure for ammonia NH3

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Tags

NGSS.HS-PS1-3

Which is the correct molecular structure for carbon dioxide?

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Tags

NGSS.HS-LS1-6

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

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

• A
• B
• C
• D

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Three pairs of electrons are shared in a

• Single bond
• Double bond
• Triple bond

What is the correct formula for this molecule?

• Si₄F
• SiF₄
• SiF
• Si₄F₄

Tags

NGSS.HS-PS1-2

 A lone pair is defined as

• A pair of bonding electrons
• One non-bonding electron
• A pair of non-bonding electrons
• A pair of electrons on the central atom

What is a valence electron?

• electron found in a middle shell

• electron found in outermost shell

• electron found in innermost shell

• electron not found in a shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Covalent compounds

• contain a sea of electrons

• share electrons

• transfer electrons

• conduct electricity

Tags

NGSS.HS-PS1-1