1# If a substance is a gas at room temperature, is it a metal, metalloid, or nonmetal?
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1. If a substance is a gas at room temperature, is it a metal, metalloid, or nonmetal?
Answer=
B. nonmetal
2. If you have an unknown material that conducts electricity and heat well, what kind of substance would it be?
Answer=
B. It must be a metal.
3. If you have an unknown material that is a brittle solid and semiconductive, what kind of substance would it be?
Answer=
B. It must be a metalloid.
4.What does it mean for a substance to have luster?
Answer=
B.It is shiny.
This will give you a 100% correct
what lesson is this
UNIT 5
Natural Resources
LESSON 4
Metals, Nonmetals, and Metalloids
Grade 6th Connections academy
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If a substance is a gas at room temperature, it can be a metal, metalloid, or nonmetal. The state of matter (solid, liquid, or gas) of an element or compound is determined by the temperature and pressure conditions.
To determine the classification of a substance as a metal, metalloid, or nonmetal, you would need to refer to the periodic table. The periodic table categorizes elements based on their chemical properties and characteristics.
Metals are typically found on the left side and in the middle of the periodic table. They are generally solid at room temperature, conduct heat and electricity well, and have a shiny appearance. Examples include sodium (Na) and copper (Cu).
Nonmetals are located on the right side of the periodic table. They have a variety of characteristics but are generally poor conductors of heat and electricity and can be found in various states at room temperature, including gases. Examples of nonmetals are oxygen (O) and nitrogen (N).
Metalloids, also known as semimetals, are found along the border between metals and nonmetals on the periodic table. They exhibit properties of both metals and nonmetals. Examples include silicon (Si) and arsenic (As).
Therefore, to determine whether a gas at room temperature is a metal, metalloid, or nonmetal, you would need to refer to the periodic table and identify the element in question.