Chap 3 Flashcards
(27 cards)
What are metals?
Metals are elements that are typically shiny, malleable, ductile, and good conductors of heat and electricity.
What are non-metals?
Non-metals are elements that are generally dull, brittle, and poor conductors of heat and electricity.
True or False: All metals are solid at room temperature.
False. Mercury is a metal that is liquid at room temperature.
Fill in the blank: Metals tend to lose ________ in chemical reactions.
electrons
Which of the following is a characteristic property of metals? A) Brittle B) Luster C) Insulator
B) Luster
What is the most reactive metal?
Francium is considered the most reactive metal.
Name a common non-metal that is essential for life.
Carbon
True or False: Non-metals can form anions.
True
What is an alloy?
An alloy is a mixture of two or more metals, or a metal and a non-metal.
Which metal is known for its corrosion resistance?
Gold
Fill in the blank: Sodium is a ________ metal.
alkali
What property allows metals to conduct electricity?
The presence of free-moving electrons.
Which of the following is a strong non-metal? A) Oxygen B) Sodium C) Iron
A) Oxygen
What is the term for the ability of a metal to be drawn into wires?
Ductility
True or False: Metals have high melting and boiling points.
True
What is the primary characteristic that distinguishes metals from non-metals?
Metals tend to lose electrons and form positive ions, while non-metals tend to gain electrons and form negative ions.
Name a metal that is liquid at room temperature.
Mercury
Fill in the blank: The most common non-metal in the atmosphere is ________.
Nitrogen
Which group of elements in the periodic table contains only non-metals?
Group 17 (Halogens)
True or False: All metals are good conductors of heat.
True
What is the effect of heat on metals?
Metals expand when heated.
What is the term for the shiny appearance of metals?
Luster
Name a property that non-metals typically lack.
Luster
Which metal is commonly used in electrical wiring?
Copper
