atomic strucure

Cards (15)

where is the proton located
nucleus
what is a protons relative mass
1
what is a protons relative charge
+1
where is a neutron located
nucleus
what is a neutron relative mass
1
what is a protons relative charge
0
where is an electron located
orbitals
what is an electrons relative mass
1/1840
what is an electrons relative charge
-1
what is the atomic number
The atomic number is the number of protons in the nucleus
what is the mass number  
The mass number is the total number of protons and neutrons in the atom
how do you work out number of neutrons
mass number - atomic number
what are isotopes 
Isotopes are atoms with the same number of protons, but different numbers of neutrons
why do isotopes have similar chemical properties
because they have the same electronic structure.
why do isotopes have slightly different physical properties
because they have different masses.