Particles
This particle has a positive charge
Proton
What do you call the vertical columns?
Groups or Families
What is the over all charge of the nucleus?
Positive
This particle has a neutral charge
Neutron
What do we call the horizontal rows?
Periods
Atomic Number is ____
This particle has a negative charge
Electron
What is Group 18 called?
Noble Gases
Atomic Mass is _____
Protons + Neutrons
Which two particles are in the nucleus of an atom?
Proton and Neutron
Most of the elements on the periodic table are ______
Metals
Electrons orbit the nucleus like
The earth orbits the sun
This Scientist developed the modern model of the atom
Niels Bohr
How many atoms are represented by each Element on the P.T
One
How many valence electrons does group 14 have?
4 valence electrons