Chemical Bonding and Polarity

In covalent bonds, electrons are ___________.

• transferred
• gained
• lost
• shared

In a polar covalent bond, electrons are shared ___________.

• equally
• unequally
• between non-metals with similar electronegativities
• between a metal and a non-metal

Which of the following is the correct Lewis structure for water?

• A
• B
• C

Tags

NGSS.HS-PS1-1

Electronegativity is a measurement of the ability of a nucleus to...

• attract bonding electrons
• attract other nuclei
• attract elenece in the non-valence energy levels

How many electrons are represented by a single straight line in a Lewis structure?

• 1
• 2
• 4
• 6

The most electronegative atom in the periodic table is:

• Fluorine
• Helium
• Neon
• Francium

In this Lewis structure, the symbol above F means...

• electrons are being transferred to Fluorine
• electrons are less attracted to F than H
• electrons are more attracted to F than H
• Fluorine has formed a cation

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

This is an example of a __________ bond.

• non-polar covalent
• polar covalent
• ionic
• metallic

Which molecule contains bonds of GREATER polarity?

• H2O
• OF2

Which molecule contains bonds with a GREATER polarity?

• HCl
• CCl4