2.1 Atomic strutcure Flashcards
Definition of isotope
the element that has a different amount of neutrons
location of a proton
inside nucleus
location of a neutron
inside nucleus
location of an electron
outside nucleus
charge and function of protons
+1, determines identity
charge and function of electron
-1, responsible for reactivity
charge and function of neutron
0, held the nucleus together
determine atomic number
number of protons
determine mass nummber
protons plus neutrons
net charge
protons- electrons
determine the number of protons
is the atomic number
determine the number of electrons
net charge- protons (atomic number)
determine the number of neutrons
mass number - protons (atomic number)
how can you use isotopes in your research