Physical Science Periodic Table

Periodic table Groups – vertical columns and have similar properties Period – horizontal rows, properties vary across a period

Periodic table Letter A – main group elements B – transition metals

Periodic table

Alkali metals – first group, very reactive Alkaline earths – second group Halogens – group seven (17) very reactive Noble gasses – group 8 (18) non reactive

Periodic table

Periodic Trends Atomic Size – due to the number of shells of electrons and their attraction to the nucleus

Periodic Trends Ionization energy – The energy required to remove an electron from an atom

Periodic Trends Electronegativity – how attracted an atom is for a pair of shared electrons

Periodic Trends Density of atoms – mass/volume