Elements and the Periodic Table

Period Period – Row of elements in periodic table

Group Group – column of elements in periodic table

Alkali metals Alkali metals – group one elements (not H) Soft, highly reactive

Alkaline earth metals Alkaline earth metals – group two elements Light, reactive

Halogens Halogens – group 17 elements Most reactive group of periodic table

Noble Gases Noble Gases – group 18 elements Very stable, rarely react with other chemicals

Elements and the periodic table 1) green  metalloids Pink  non-metals Blue metals 2) what is the exception to metals and non-metals 3) give two reason why this is where it is?

Elements and the periodic table 4) list four properties of metals 1 -3 2 -4 5) List four properties of non-metals

Elements and the periodic table 6) Explain the term chemical family (group)

Elements and the periodic table Family Location 2 elements in this family 2 properties of this family Alkali Metal Alkaline earth metal Noble gases halogens

Elements and the Periodic Table 8B) give a definition of each part- charge and location Proton + , inside nucleus Neutron neutral, inside nucleus Electron - , inside nucleus

Elements and the Periodic Table 9) What is an ion? A charged atom 10) how is an ion formed? Loses or gains electrons

Bohr Rutherford Diagrams

Bohr Rutherford Diagrams Graphically illustrate the chemical structure of elements of the Periodic Table Electrons are around nucleus in orbits Each orbit can only contain a certain number of electrons (2 electrons in first orbit then 8 in each after) # protons = atomic # #neutrons = mass# - atomic# #electrons = atomic #

Bohr Rutherford Diagrams Example Phosphorus

Bohr Rutherford Diagrams Example Fluorine

Bohr Rutherford Diagrams

Bohr Rutherford Diagrams

Bohr Rutherford Diagrams

Bohr Rutherford Diagrams