Elements and the Periodic Table Period Period Row

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 nonmetals • 3) give two reason why this is where it is?

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

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

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

Elements and the Periodic Table • 8 B) 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