Periodic Properties LabPhysical and chemical properties
Periodic Properties•Physical and Chemical properties of elements depend on their number and placement of electrons•Elements in the same area of the periodic table have similar physical and chemical properties
Areas of the periodic table
The properties of the elements follow a periodic pattern.Elements in the same column have similar properties.The elements in a period show a pattern that repeats.The quantum-mechanical model explains this because the number of valence electrons and the types of orbitals they occupy are also periodic.Properties and Electron Configuration
The alkalimetals have one more electron than the previous noble gas.In their reactions, the alkali metals tend to lose one electron, resulting in the same electron configuration as a noble gas.Forming a cation with a 1+ chargeAlkali metals are very reactiveThe alkaliearth metals have two more electron than the previous noble gas.