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Questions and Answers
Which of the following elements can be classified as metalloids?
Which of the following elements can be classified as metalloids?
- Boron (correct)
- Sodium
- Oxygen
- Aluminum
Which element is a very reactive metal but exists as a gas at room temperature?
Which element is a very reactive metal but exists as a gas at room temperature?
- Oxygen
- Carbon
- Nitrogen
- Hydrogen (correct)
What property of metals results from the mobility of the valence electrons in the crystal lattice?
What property of metals results from the mobility of the valence electrons in the crystal lattice?
- Good electrical and thermal conductivity (correct)
- Lustrous surface
- Opacity
- High density
In a normal environment, which of the following metals is a liquid at room temperature?
In a normal environment, which of the following metals is a liquid at room temperature?
What causes the metallic sound (ring) when a metal is struck?
What causes the metallic sound (ring) when a metal is struck?
Which element is a metal that exists as a gas at room temperature?
Which element is a metal that exists as a gas at room temperature?
Which property of metals results from the proper packing of atomic structure in the crystal lattice?
Which property of metals results from the proper packing of atomic structure in the crystal lattice?
Which element is an example of a metalloid?
Which element is an example of a metalloid?
What causes the opacity of metals?
What causes the opacity of metals?
Which property of metals results from the mobility of the valence electrons in the crystal lattice?
Which property of metals results from the mobility of the valence electrons in the crystal lattice?
Which element, existing as a gas at room temperature, is a very reactive metal?
Which element, existing as a gas at room temperature, is a very reactive metal?
Which property of metals results in their lustrous surface?
Which property of metals results in their lustrous surface?
Which element ionizes positively in solution and provides electrons to the outer circuit in a galvanic cell if two metals are present?
Which element ionizes positively in solution and provides electrons to the outer circuit in a galvanic cell if two metals are present?
Which element is an example of a metalloid showing both metallic and nonmetallic properties?
Which element is an example of a metalloid showing both metallic and nonmetallic properties?
What causes the opacity of metals?
What causes the opacity of metals?
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