CC3 Flashcards
What is an atom ?
An atom is a small object which makes up everything in the universe they can not be created or destroyed
What is a compound ?
Two or more elements that are chemically bonded together
What is an element ?
There are lot of different types of element that are natural substances and are made up of 1 atom
What is a mixture ?
Two or more elements that are not chemically bonded
What is a chemical formula ?
Shows the type and number of atoms in a compound
What is the periodic table ?
A table which contains all the elements in a very specific order
What three subatomic particles make up a atom ?
Neutron, electron, proton
What subatomic particles are found in the nucleus ?
Neutron, proton
What charge does an electron have ?
Negative
What charge does a proton have ?
Positive
What charge does neutron have ?
Neutral charge
Where are electrons found in an atom ?
They are found orbiting the nucleus in shells in the electron cloud
How many electrons can be found in each shell ?
2,8,8,8,8,8,8 etc
What are the masses of the three subatomic particles ?
Neutron=1
Proton=1
Electron=0
What does the atomic number show ?
It shows the amount of protons in a atom and as proton and electron numbers are equal it shows the number of electrons as well
