Structure of the Atom Crossword

Centre of the atom
Positively charged subatomic particle
Specifies the number of protons all that elements atoms contain in their nucleus
Smallest neutral piece of an element
Smallest atom possible is the _________________ atom
Table where elements are arranged in order of increasing atomic number and hence size
This subatomic particle has NO charge
Negatively charged subatomic particle
Electrons spin around the nucleus in rings called?
Maximum number of electrons in the first orbit?
Maximum number of electrons in the second and third orbits?
Protons and electrons are in equal numbers in atoms, so atoms are ___________ ?
All the elements of this group number have a full valence orbit of electrons
Vertical columns on the periodic table
Outer electron orbit
Horizontal rows across the periodic table are called?
Have almost no mass and are 1/2000 the size of a proton
Specifies the number of protons and neutrons contained in the nucleus of that elements atoms