GROUPS OF ELEMENTS GROUPS AND PERIODS Groups families

GROUPS OF ELEMENTS

GROUPS AND PERIODS Groups (families): the vertical columns of the period table. Elements in the same group share chemical properties. There are 18 groups in the periodic table. � What do the elements in the groups all have in common?

GROUPS AND PERIODS Periods: One of seven horizontal rows in the periodic table. � What do the elements in the periods all have in common?

WHICH ATOMS ARE THESE? Group 1, Period 6 Group 16, Period 4 Group 14, Period 6 Group 9, Period 7

CHEMICAL FAMILIES There are 4 main families of the periodic table. They are: � Alkali Metals � Alkaline Earth Metals � Halogens � Noble Gases

ALKALI METALS Properties: Silvery grey, malleable, soft, conduct electricity and heat. Most reactive metals, react violently with water. Lithium, Sodium, Potassium, Rubidium, Cesium, Francium https: //www. youtube. com/watch? v=m 55 kgy Ap. Yr. Y

ALKALI METALS

ALKALINE EARTH METALS Silvery-grey, malleable, slightly harder than alkali metals, conduct electricity and heat. Reactive, but not as reactive as the alkali metals Beryllium, Magnesium, Calcium, Strontium, Barium, Radium

ALKALINE EARTH METALS

HALOGENS Non-metals Solid, liquid and gases Brightly coloured Most reactive non-metals Fluorine, Chlorine, Bromine, Iodine, Astatine

HALOGENS

NOBLE GASES All Gases All non-metals Not Reactive Helium, Neon, Argon, Krypton, Xenon, Radon

NOBLE GASES

TRENDS ON THE PERIODIC TABLE Metals become more reactive Metals become more Reactive as you move Down the column Non-metals become m Reactive as you move Column. Non-metals become more reactive

QUESTIONS P 195, #3, 4 P 199, #4 P 204, #3, 4, & 12