Fundamental Forces

                                      Periodic Table HERE 
" Periodic Tables arrange the elements in order of a particular property, such as atomic number or more historically, the atomic weight (now relative atomic mass). Of the nearly 120 chemical elements now known, 80 are stable and one way of grouping them has been in terms of whether they readily conduct electricity. Metals conduct, nonmetals don't, and a small group, (the metalloids), have intermediate properties and often behave as semiconductors."

Atom and sub-atomic HERE

FUNDAMENTAL FORCES OF NATURE 

                                    There are 4 Forces
Name:  
Strong,
Electro-Magnetic,
Weak,
Gravity

• made up of particles , strength, range and nature 

all 4 involve the exchange of 1 or more particles:

1. Strong - gluon
2. EM - photon
3. Weak - W & Z
4. Gravity - graviton

Descending in strength

1. Strong    -- "A force which can hold a nucleus together against the enormous forces of repulsion of the protons"  [ref   The Strong Force HERE 
2. Electro-Magnetic  [EM]   --   "manifests itself through the forces between charges" -  " both magnetic and electric forces are manifestations of an    exchange force involving the exchange of photons    - "The electromagnetic force holds atoms and molecules together."  [ref same as above but Electro Magnetic Force box] 
3. Weak    --
4. Gravity    --

Strong force binds quarks together in clusters to make more-familiar subatomic particles, such as protons and neutrons.  It also holds together the atomic nucleus and underlies interactions between all particles containing quarks. Ref HERE



Taken from
http://hyperphysics.phy-astr.gsu.edu/hbase/Forces/funfor.html#c4

Exchange Forces
All four of the fundamental forces involve the exchange of one or more particles HERE