Polarity and Bonding

Question 1

What is the Strongest type of inter molecular bonding

Answer 1

Hydrogen Bonds

Question 2

What is the weakest type of inter molecular bonding

Answer 2

London Dispersion Force

Question 3

What type of bonds do diatomic elements have?

Answer 3

Pure covalent bonds

Question 4

What are the three main types of van der waals’ forces?

Answer 4

1. London dispersion forces
2. permanent dipole - permanent dipole interactions
3. Hydrogen bonding

Question 5

What type of molecules is H2O?

Answer 5

They are polar molecules. Both of the bonds inside the molecule are polar bonds.

Due to the non-symmetrical shape of the molecule (bent), the molecule itself is polar

Question 6

What elements are monatomic?

Answer 6

Noble Gases

• Helium
• Neon
• Argon
• Krypton
• Xenon
• Radon

Question 7

What elements are metallic?

Answer 7

Metallic

• (Li) Lithium
• (Be) Beryllium
• (Na) Sodium
• (Mg) Magnesium
• (Al) Aluminium
• (K) Potassium
• (Ca) Calcium

Question 8

What elements have covalent networks?

Answer 8

• (B) Boron
• (C) In diamond & graphite forum
• (Si) Silicon

Question 9

What elements are covalent molecular?

Answer 9

Chemical Formula - Full name - (Shorthand)
H2 - Hydrogen
N2 - Nitrogen
O2 - Oxygen
F2 - Fluorine
Cl2 - Chlorine
P4 - Tetraphosphorus (Molecular phosphorus)
S8 - Octathiocance (Octasulfur) 
C60 - Buckminsterfullerene (Fullerene)

Question 10

What is electronegativty

Answer 10

Atoms of different elements have different attractions for bonding electrons.

Electronegativity is a measure of the attraction an atom involved in a bond has for the electrons of the bond

Question 11

What L.D.F’s

Answer 11

Forces of attraction that can operate between all atoms and molecules

They are formed as a result of electrostatic attraction between temporary dipoles and induced dipoles caused by movement of electrons in atoms and molecules