Ionic and Covalent Lewis Structures

What is the correct Lewis Dot Structure for Gallium?

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Tags

NGSS.HS-PS1-1

Choose the correct shape for this molecule:

• Trigonal planar

• Trigonal pyramidal

• Trigonal planar - Bent

• Tetrahedral

Which of the following is the correct Lewis structure for the compound PBr₃?

• structure A

• structure B

• structure C

• structure D

If the calculated ΔEN for a bond is 2.5 the bond would be...

• Ionic

• Polar covalent

• Non polar covalent

How many NON BONDING electron domains are around the central atom?

• 0

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

Metals and nonmetals form which kind of bond?

• Polar covalent

• Ionic

• Non-polar covalent

• Metallic

Which statement correctly describes NaCl?

• Its charge is evenly distributed

• It is a polar molecule

• It is ionic, and its charges are distributed unevenly

Which of the following correctly represents the Lewis structure for a water molecule (H2O)?

• A) H-O-H with two lone pairs on O

• B) H=O=H with no lone pairs

• C) H-O-H with one lone pair on O

• D) H-O-H with three lone pairs on O

Tags

NGSS.MS-PS1-1

What type of bond is formed between sodium (Na) and chlorine (Cl) in NaCl?

• A) Covalent bond

• B) Ionic bond

• C) Metallic bond

• D) Hydrogen bond

Tags

NGSS.HS-PS1-3

Which of the following compounds is most likely to have a covalent bond?

• A) NaCl

• B) H2O

• C) MgO

• D) KBr

Tags

NGSS.HS-PS1-1