Periodic Table Review

Look at the above pictures and fill in the blanks. The Periodic table is arranged in rows and columns. The rows are called periods and the columns are called groups. As you read across each period fro left to right the atoms increase in mass. Hydrogen atoms have the smallest mass, then helium atoms , then lithium atoms. 1. Give the names of 2 elements in the same period as magnesium.2. Give the symbols of 2 elements in the same group as helium. Look at the periodic table above.1. Can you explain why some boxes are blue and some are yellow?2. What does this tell you about the way the elements are arranged on the periodic table? Properties of metals and non-metals What can you remember about metals and non-metals? Arrange the following into the correct groups. Metals Soild at room temperature High boiling point High melting point High density (they feel heavy for their size) Strong Malleable Good conductor of heat Good conductor of electricity Ductile Make a ringing sound when hit Luster Non-metals Dull Low density (They feel light for their size) Poor conductors of heat Poor conductors of electricity Make a dull sound when hit Most are gases at room temperature Brittle Metal or Non-metal Look at the pictures above. State whether each image shows a metal or a non metal and give 2 reasons for your answer. Picture Metal Reason 1 (properties) Reason 2 (properties) A B C D E F Look again at the periodic table. Remember: Columns are groups and rows are periods.1. What do you notice about the atomic number as you go down the groups?2. What do you notice about the mass number as you go down the groups?3. What does this tell you about the atoms as you go down the groups? Trends and predictions Look at the periodic table below Use what you know about the periodic table. Can you make the following predictions? Question Prediction Which has a bigger atomic number lithium (Li) or potassium (K)? Which has a bigger atomic number fluorine (F) or bromine (Br)? Which has a bigger mass number argon (Ar) or neon (Ne)? Which has a bigger mass number chlorine (Cl) or bromine (Br)? How many shells are there in an atom of helium (He) How many shells are there in an atom of zinc (Zn) How many shells are there in an atom of potassium (K) What's Inside Your Phone?! Watch the video above to match the correct words to the empty spaces below. Metals have luster, which means they reflect light. Metals can be hammered and pressed into shapes because they are malleable. Metals are the very good conductors of electricity. Metals are ductile, meaning they can be pulled into wires. They are located on the left-hand side of the periodic table.Metalloids share physical properties of both metals and nonmetals. Metalloids are semiconductors, meaning that they can only conduct electricity under certain circumstances. They are located between the metals and nonmetals on the periodic table.Nonmetals are not malleable, as they are brittle and easily broken. Nonmetals are poor conductors, and are also called insulators. With the exception of hydrogen, they are located on the right-hand side of the periodic table.