Shared Flashcard Set

Details

Atomic Structure and Bonding
Quizzes for IGCSE chemistry
8
Chemistry
9th Grade
01/24/2011

Additional Chemistry Flashcards

 


 

Cards

Term
Allotrope
Definition
Different structural forms of the same element e.g. diamond, graphite and buckminsterfullerine.
Term

What does the picture below show?  What physical properties would you expect it to have?

[image]

Definition
The picture shows graphite, an allotrope of carbon.  Graphite conducts electricity because of the free electrons between the layers, it also feels soft as the layers can slide over one another.
Term

What sort of bonding is present in the sodium chloride crystal below?

[image]

Definition
Metal + non-metal = ionic bonding
Term
What is the formula of ammonia?
Definition
NH3
Term

What are the formulae of the following acids?

Hydrochloric acid

Sulfuric acid

Nitric acid

Definition

Hydrochloric acid - HCl

Sulfuric acid - H2SO4

Nitric acid - HNO3

Term
What does the Ar of an element tell you? What are the units?
Definition
The relative atomic mass - the mass of one atom of a substance on a scale where one atom of carbon-12 is exactly 12.  It has no units!
Term
What is an isotope?
Definition
Different atoms of the same element with the same number of protons and electrons but a different number of neutrons.
Supporting users have an ad free experience!