Trends on the Periodic Table.

 There are some things on the periodic table that you wouldn't know about just by looking at it, but by actually studying and researching about it.

Did you know that elements close to each other on the periodic table display similar characteristics? 

TRENDS

There are 7 important periodic trends that you'd have to know;

1. Reactivity

2. Ion Charge

3. Melting Point

4. Atomic Radius

5. Ionization Energy

6. Electronegativity

7. *Density 

You actually don't need to know much about density.

REACTIVITY

• Metals and non-metals show different trends
• The Most reactive metal is Francium; the most reactive non-metal is fluorine.

ION CHARGE

• Elements that that contain ion charges depend on their group (column)

MELTING POINT

• Elements in the center of the table have the highest melting point
• Noble gases have the lowest melting points
• starting from the left and moving right, melting points increase until the middle of the table

ATOMIC RADIUS

• Radius decreases up the right 
• Helium has the smallest atomic radius 
• francium has the largest atomic radius

IONIZATION ENERGY

• Ionization energy is the energy needed to completely remove an electron from an atom
• it increases going up and to the right of the periodic table
• all noble gases have high ionization energy
• Helium has the highest ionization energy and Francium has the lowest ionization energy

ELECTRONEGATIVETY

• Electronegativity refers to how much atoms want to gain electrons
• some trend such as ionization energy

IF YOU WANT TO LEARN MORE PLEASE REFER TO THE FOLLOWING LINKS! :)

http://chemistry.about.com/od/periodictableelements/a/periodictrends.htm

http://dl.clackamas.cc.or.us/ch104-06/periodic.htm

A SONG THAT COULD HELP YOU REMEMBER THEM

http://www.youtube.com/watch?v=dHcD_But7dU

http://www.youtube.com/watch?v=dHcD_But7dU

SOFIA NGUYEN