Ionic/Covalent Classifying

Electronegativity _______ across a period and ______ down a group.

• increases, increases

• increases, decreases

• decreases, increases

• decreases, decreases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these atoms is the most electronegative?

• Bromine

• Fluorine

• Hydrogen

• Potassium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A diatomic molecule like O₂ is always _____ because electrons are shared _____

• nonpolar; unequally

• polar; equally

• nonpolar; equally

• polar; unequally

More electronegative atoms in covalent compounds are likely to have:

• Partial positive charge

• Partial negative charge

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The electrons in a polar covalent molecule are

• shared evenly

• shared unevenly

• not shared

• None of the Above

The electrons in an ionic compound are

• shared evenly

• shared unevenly

• not shared

• None of the Above

Tags

NGSS.HS-PS1-3

Order the types of bonds based on the charge of their molecules. (lowest amount of charge to greatest)

• Polar Covalent --> Ionic --> Nonpolar Covalent

• Ionic --> Nonpolar Covalent --> Polar Covalent

• Ionic --> Polar Covalent --> Nonpolar Covalent

• Nonpolar Covalent --> Polar Covalent --> Ionic

Tags

NGSS.HS-PS1-3

If Bromine bonds with Hydrogen, a ____________ bond forms.

• polar covalent
• nonpolar covalent
• metallic
• ionic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Use your knowledge and electronegativity sheet to predict what the following compound is classified as.

• non-polar covalent

• polar covalent

• ionic

• metallic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The electronegativity difference in the bonds of CH₄ is:

• 0.4

• 5.9

• -0.4

• 1.7