If there only about 100 types of elements in the world, why are there so many different kinds of matter? 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Left:

Elements can combine in many different ways to form many different types of matter.

Where are the metals, nonmetals, and metalloids located in the periodic table? 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Remaining:

Metals - are on the left side Nonmetals – are on the right side Metalloids – are on a slanting line between the metals and nonmetals

Which group of elements on the periodic table does not readily combine with other elements? 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Remaining:

Group 18 - the Noble Gasses

Describe metalloids. 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Left:

Elements having properties of both metals and nonmetals.

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. 80 9 10 20 30 8 6 3 2 4 5 180 7 40 50 140 120 130 60 70 1 170 160 150 110 90 Seconds Left: 100

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.

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. 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 90 100 80 Seconds Left:

On the far left side of the periodic table the elements are all metals 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.