atomic structure Flashcards
1
Q
proton - mass charge and where its found in atom
A
mass 1
charge +
inside nucleus
2
Q
electron - mass charge and where its found in atom
A
mass 0
charge -
outside nucleus
3
Q
neutron - mass charge and where its found in atom
A
mass 1
charge 0
inside nucleus
4
Q
why is an atom neutral
A
neutron found inside the nucleus of atom has charge of 0
5
Q
what’s an isotope
A
atom with same atomic number but different mass number
6
Q
how to calculate number of neutrons in an element
A
mass no - proton no
