atomic structure
what is a atom that has a positive charge
proton
how many periods are there
7
what is the atom that has no charge
neutron
how many families are there
18
what is the the atom that has a negative charge
electrons
what is the element called
k
potassium
where are the electron at
electronic cloud
what is the element called
Fe
iron
what is it called in the in the middle
nucleus
what is the element called
ag
gold