What is the section home to the metals on the periodic table?
Section 2
100
Most metals are able to transmit heat and electricity easily. What is the physical property that describes this ability?
Conductibility
100
What is the word that means the ease and speed with which an element combines, or reacts, with other elements and compounds?
Reactivity
100
Barium is an alkaline earth metal. Find this element on the periodic table. Name this element's chemical symbol, atomic number, period number, and group number.
Chemical symbol: Ba
Atomic Number: 56
Period Number: 6
Group Number: 2
100
Is the element iron, which is very magnetic, a metal?
Yes
200
These metals are found in Group 1 of the periodic table. They are so reactive that they are never found uncombined in nature. What are these metals called?
Alkali Metals
200
What is the word that describes the luster for many metals?
Shiny
200
How does the reactivity of the metals change as you move from left to right across the periodic table?
The reactivity of metals tends to decrease as you move across the periodic table.
200
Describe what an alloy is.
An alloy is a mixture of metals, often combining the best properties of two or more metals into a single substance.
200
Is an element that has a dull luster and is not malleable (cannot be pounded into shapes) likely a metal?
No
300
These elements fit in Periods 6 and 7 of the Periodic Table, yet are placed below the table of convenience.
The Lathanides and Actinides
300
Several metals are attracted to and can be made into objects that have north and south poles. What is the physical property that describes this ability?
Magnetic
300
Think about where gold is on the periodic table and why it is valued. Does gold react with air and water or is it unreactive?
Gold is unreactive. It stays shiny instead of reacting with air.
300
Name three items around the room that are metals.
Answers may vary.
300
I am an element placed under the periodic table. Am I a metal?
Yes: lanthanides and actinides are metals that are placed under the periodic table for convenience.
400
These metals form a bridge between the very reactive metals on the left side of the periodic table to the less reactive metals on the right of the periodic table. These metals include iron, copper, and gold. What are these metals called?
Transition metals
400
Many metals can be characterized by their ability to be pulled out, or drawn, into long wires. What is the physical property that describes this ability?
Ductile
400
When water is dripped onto sodium metal, a vigorous reaction occurs. Why does this happen?
Some metals are highly reactive and can react vigorously if exposed to air or water (such as sodium).
400
Draw a Bohr electron diagram of Lithium (Li)
3 protons
4 neutrons
3 electrons
1 valence electron
2 electron shells
400
I am found in the useful mixture of steel, which is used to make most automobiles. Am I a metal?
Yes
500
These metals are found in Group 2 of the periodic table. They are fairly hard, grayish-white, and good conductors of electricity. What are these metals called?
Alkaline Earth Metals
500
Do most metals have very high or extremely low melting points?
Very high melting points
500
What is corrosion?
Most metals react slowly with oxygen, forming metal oxides. If these metals are left unprotected, their surfaces will slowly turn to rust, which can flake off. Corrosion is the destruction of a metal through this process.
500
(Cannot be answered until "Groups of Metals" is completed) We covered four types of metals in the "Groups of Metals" section. What group of metals did we not cover? Name a metal from this group.
Metals in mixed groups
500
Most metals have very high melting points. If I am a liquid, am I never a metal?
No: mercury is the only metal that is liquid at room temperature.