Lesson 5 - Metals, Metalloids, and Nonmetals
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ductile
when an object can be beaten into a thin sheet or a long string
malleable
when an object can be easily shaped
transition metals
largest group of elements on the periodic table; often radioactive
nobile gases
nonmetals that do not normally combine with other elements
malleable
when an object can be easily shaped
metaliods
elements stacked in the “in-between” area of the periodic table because they have the properties of both metals and nonmetals
alkal metals
light elements with a strong reaction to any other element they come in contact with; explode easily
alkline earth metals
metals that were first found in the rocks and minerals of the Earth; “prefer” to join with other elements rather than exist alone
ductile
when an object can be stretched into a long string
main group metals
the heaviest metals in the element family
nonmetals
halogens and noble gases; brittle when found as solids; share electrons easily, but don’t conduct heat well
What are the three major groups of elements?
nonmetals metalloids metals
What is unique about the metal mercury?
Mercury is the only metal that exists in liquid form under standard conditions.
Three alkali metals are ________________________, ________________________, and ________________________.
sodium; potassium; cesium
Alkaline earth metals usually join with ________________________ .
oxygen
Two transition metals are and . There are transition elements in all.
gold: silver: 59
Three main group metals are ________________________, ________________________, and ________________________.
arsenic, iron,nickel
Describe seven characteristics of metals.
None of the metals are ever found as a gas. Almost all metals are malleable. Metals have ductility. Metals are usually good conductors of heat. Metals are often a silver or gray color and can shine brightly in the Sun. The majority of metals are found as solids. Many metals can conduct electricity.