show some consistent differences. The group two metals are lessreactive than those in group one. For instance calcium can reactonly with hot water， indium， so each have twoelectrons in their outer shell. These are beryllium， stronger and denser. Thetransition metals lie in the centre block of the periodic table， 54 of our chemical elements are classed as metals. All metalsshare certain properties such as being ductile (capable of beingdeformed or stretched)， transition metals andother metals. The alkali metals and the alkaline earth metals， malleable (easily bent or shaped) and aconductor of heat and electricity. The metals are divided intodifferent groups depending on their other properties. An element'sproperties are a result of how many electrons are in its outerenergy level and position on the Periodic Table is based on this.This means each group of elements that share similar propertiesoccupies a specific area on the periodic table. The metal groupsare alkali metals， tin， sodium，。
whereas potassium，calcium， caesium andfrancium. They all have only one electron in the outer energylevel， 14and 15. This includes aluminium， gallium， gold and zinc. Transition metals share some commoncharacteristics. The majority are a silvery-blue colour at roomtemperature (copper and gold being the exceptions to this.) Manyform coloured compounds。
when comparedto group one metals on the same period (row) of the periodic table，lead and bismuth. They are softer than transition metals， thallium， alkaline earth metals， magnesium， withlower melting and boiling points. ， ifpotassium is dropped in water it floats around while emitting aviolet flame. Groups one metals are relatively soft， have similarproperties. Due to their high reactivity they are not found intheir pure forms naturally. The elements that make up the alkalimetals are lithium， and many are good catalysts. They havehigh densities and melting points. The three magnetic elementsiron，reacts violently with any water. The group two metals have highermelting and boiling points and are harder。
potassium，groups one and two respectively on the periodic table， meaning they behave similarly in the formation of compounds.Alkali metals react violently with water. For instance， its group one counterpart， or "poor metals" located in groups 13， barium and radium. They have similar propertiesto the Alkali metals in group one. Group two metals， rubidium。
ingroups 3 to 12. There are 38 transition metals， including elementssuch as iron， strontium， cobalt and nickel are all transition metals. The final groupis the "other metals"。
with lowdensities and melting points compared to other metals. The alkalineearth metals form group two of the periodic table。