Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/18

Click to flip

18 Cards in this Set

  • Front
  • Back

What is a polar molecule?

A molecule with a difference in electrical charge between two ends

How is the electrical imbalance of polarity caused?

By differences in electronegativity between atoms

What is electronegativity?

The ability of an atom to attract bonding electrons towards itself

What level of electronegativity do metals have because they give up their electrons easily?

Low level (group 1&2 in periodic table)

What level of electronegativity do non-metals have?

High level

Does any atom have an electronegativity of zero?

No

What is the patten of electronegativity as seen on the periodic table?

Electronegativity increases as you go across from left to right and increases from bottom to top (i.e. the top, right corner- Fluorine - is the most electronegative

How does the partial chargés work?

The bond atom with the higher electronegativity becomes slightly negative and the bond atom with the lower electronegativity becomes slightly positive

Bonded atoms with equal ectron-attracting strength will have what bonds?

Non-polar bonds

What are the three types of polar bonding and how strong is the charge for each?

Non-polar covalent bonding: no charge


Polar covalent bonding: slight charge


Ionic bonding: extreme charge

What is the electronegativity value of hydrogen?

2.1

What is the electronegativity value of fluorine?

4.0

What is the electronegativity value of carbon?

2.5

What is the electronegativity value of chlorine?

3.0

What is the electronegativity value of nitrogen?

3.0

Will a lone pair of electrons balance out?

No

An asymmetrical molecule is a:

Polar molecule

A symetrical molecule is a:

Non-polar molecule