Atomic Structure & The Periodic Table Flashcards
What element is represented by W ?
Tungsten
What element is represented by Na?
Sodium
What element is represented by Si?
Silicon
What element is represented by Co?
Colbalt
What element is represented by Fe?
Iron
What group is Oxygen in ?
Group 7
What group is Argon in ?
Group 8
What group is Potassium in ?
Group 1
What group is sulphur in ?
Group 6
What group is chlorine in ?
Group 7
What period is phosphorus in ?
Period 3
What period is nitrogen in ?
Period 2
What period is gallium in ?
Period 4
What period is calcium in ?
Period 4
What period is gallium in ?
What period is carbon in ?
Period 2
What is a compound ?
A compound is two or more elements that are chemically bonded
What is a mixture?
A mixture is a two or more elements that are individually distinct
Give 3 ways of separating out mixtures ?
Filtration , distillation evaporation
What did Chadwick discover ?
Chadwick proved the existence of neutrons
What experiment did Rutherford do ?
He did the gold foil experiment which was about alpha beta particles etc
What type of foil did Rutherford use ?
Gold foil
What did Rutherford fire at the Atom ?
Alpha particles
What model of the atom was Rutherford testing
The nuclear model
What did Rutherford discover ?
He discovered alpha and beta rays and proposed the laws of radioactive decay
What was the new model of the atom called ?
Nuclear atom
Where are electrons ?
On the outer shell outside the nucleus
Where are protons ?
Protons are located within the nucleus
Where are neutrons ?
Within the nucleus
What charge do protons have ?
Positive
What charge do neutrons have ?
Neutral