Presentation on theme: "Families on the Periodic Table"— Presentation transcript:
1 Families on the Periodic Table Elements on the periodic table can be grouped into families bases on their chemical properties.Each family has a specific name to differentiate it from the other families in the periodic table.Elements in each familyreact differently withother elements.
2 ALKALI METALS Group 1 Hydrogen is not a member, it is a non-metal All are metals and solid at room tempSoft and silvery, shinyVery reactive, esp. with waterConduct electricityImage:
3 ALKALINE EARTH METALS Group 2 Metals Solids at room temp White, silveryReactive, but less than Alkali metalsConduct electricity
4 TRANSITION METALS Metals Almost all are solids at room temp (Hg) Good conductors of heat and electricity.Can bond with many elements in a variety of shapes.
5 BORON FAMILY Group 3 3 electrons in the outer shell Most are metals Boron is a metalloidReactiveSolid at room temp
6 CARBON FAMILYGroup 4Carbon (C)Reactivity variesSolids at room temp
7 NITROGEN FAMILY Group 5 5 electrons in the outer shell Can share electrons to form compoundsNitrogen is the only gas at room temp, rest are solids
8 OXYGEN FAMILY Group 6 6 electrons in the outer shell Reactive Oxygen is a gas, the rest are solids at room temp
10 Noble Gases Group 8 Exist as gases Non-metals 8 electrons in the outer shell = FullHelium (He) has only 2 electrons in the outer shell = FullNot reactive with other elements
11 Rare Earth Metals Some are Radioactive The rare earths are silver, silvery-white, or gray metals.Conduct electricity
12 Periods Each row is called a “period” The elements in each period have the same number of shells1st Period = 1 Shell2nd Period = 2 Shells3rd Period = 3 Shells4th Period = 4 Shells
13 Groups Group 8 = 8 electrons Group 1 = 1 electron Except for He, it has 2 electronsGroup 2 = 2 electrons3, 4, 5, 6, 7Each column is called a “group”Each element in a group has the same number of electrons in their outer orbital, also known as “shells”.The electrons in the outer shell are called “valence electrons”
14 Metals - are on the left side Nonmetals – are on the right side Complete Periodic Table of Elements Warm-up worksheetMetals - are on the left sideNonmetals – are on the right sideMetalloids – are on a slanting line between the metals and nonmetals
15 Complete Periodic Table of Elements Warm-up worksheet Where are the metals, nonmetals, and metalloids located in the periodic table?
17 Elements having properties of both metals and nonmetals. MetalloidElements having properties of both metals and nonmetals.
18 Complete Periodic Table of Elements Warm-up worksheet Germanium, with an atomic number of 32, is not a metal or a non-metal, but a metalloid. – Describe where metalloids are found on the periodic table, with respect to the metals and non-metals.
19 Complete Periodic Table of Elements Warm-up worksheet Metalloids are found in between metals and non-metals on the periodic table. Their position tells us that they have some of the characteristics of metals and some characteristics of non-metals. For example, germanium conducts electricity, but not as well as true metals.
20 Elements are organized in the periodic table in such a way that there are patterns of elements placed close together that have similar properties. For example, knowing the properties of one element in a column of the periodic table will help a person predict the properties of other elements in that same column.–Describe two properties common to elements found at the far left of the periodic table. –Describe two properties common to elements found at the far right of the periodic table.
21 Complete Periodic Table of Elements Warm-up worksheet On the far left side of the periodic table the elements are all metals. So, they are solids at room temperature and are good conductors of heat and electricity. One the far right side of the periodic table, the elements are gases at room temperature. They are colorless and non-reactive.