Periodic Trends

Periodic Trends

-The trend of elements in the periodic table regarding different characteristics

-A total of 6:

-metallic properties

-atomic radius

-ionization energy

-electronegativity

-reactivity

-ion charge

-metling and boiling point

-density

Metallic Properties

-The elements change from left to right arosss the table and elelements that are more metallic moves down the table

-The atom decreases aross a row from left to right and increases going down a family. When the atom is going from left to right the atomic number increases along with the nucleus

-When the atoms are going down a family the orbits are more compact and therefore the inner electons attract each other whereas the elctrons on th outer end repel each other

Reactivity

-Metals and Non-metals have and show different trends. When the metal moves down a family and right a row it is more reactive and when going up and left it is less reactive

-Non-metals are the opposite or metals, it increases or it's more reactive as an atom goes up a family

Melting/Boiling Points

-The elements from the center has the highest melting point and the Noble Gases has the lowest melting point

Ionization Energy

-Ionization Energy are energies needed to remove one elctron from an atom

-They increase as it does up and right in t he periodic table and all the noble gases have high ionization energy

-the electrons have these atoms remove eaily. When going left to right it has a higher attraction between the nucleus and the electrons whereas the outer electrons decreases as it goes down a group

Electronegativity

-how much atom wants to gain electrons

-atoms goes left to right and up they increase and decreases going down a group

-atoms with high electornegativity are strognly attracts other elctrons from another atom or it may remove an electron from a neighbor