Chapter 11- Particles that make up substances

Question 1

Define the term allotrope.

Answer 1

Each of two or more different physical forms in which an element can exist.

Question 2

Define intermollecular forces

Answer 2

A weak force of attraction between molecules, ions, or atoms of noble gases.

Question 3

Define intramolecular forces

Answer 3

A bond which occurs between atoms within molecules.

Question 4

Define the term viscosity

Answer 4

A measure of the ability of a liquid to flow.

a liquid with high viscosity does not flow very easily

Question 5

Define term electrolysis

Answer 5

Chemical decomposition of a substance by passing an electric current through a liquid or solution containing ions.

Question 6

What is a lattice structure?

Answer 6

A lattice structure is a giant structure consisting of many hundreds, thousands or millions of units linked together in a repetitive pattern.

Question 7

What is the empirical formula?

Answer 7

Gives the simplest ratio which atoms of a molecule nines. Can be the same as molecular formula for certain substances.

Question 8

What is an electrode?

Answer 8

A conductor through which electricity enters or leaves an object.