Q1W2.1 Relating the polarity of molecules to its properties

Which has a higher electronegativity

• Carbon

• Nitrogen

• Fluorine

• Calcium

What does the Electronegativity chart tell us?

• The probability of an atom attracting with a pair of neutrons.

• The probability of an atom attracting with a pair of electrons.

• The probability of an element attracting with a pair of neutrons.

• The probability of an element attracting with a pair of electrons.

What are the two types of polarities

• Ionic & Covalent

• Solubility & Miscibility

• North & South

• Polar & Nonpolar

Which has a lower electronegativity, Copper(Co) or Flourine(F)?

• Copper(Co)

• Fluorine(F)

What is the property of water that allows it to stick to other water molecules?

• Capillary Action
• Solubility
• Adhesion
• Cohesion

When does water freeze?

• 0 degrees celsius
• 20 degrees celsius
• 100 degrees celsius
• 1 degrees celsius

What two atoms make up water?

• Hydrogen and Oxygen
• Helium and Oxygen
• Sulfur and Arsenic
• Uranium and Sodium

Question #2: The horizontal rows on the periodic table are called

• periods
• groups
• families
• elements

A molecule is polar when

• it is asymmetrical with at least one polar bond

• it is symmetrical

• it is asymmetrical

• it is symmetrical with at least one polar bond

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.