Bonds
Metals, Nonmetals, Metalloids
Physical and Chemical Changes
Ions and Valence Electrons
Challenge
100
The kind of electrons used in a chemical bond.
What are valence electrons?
100
One of the properties of this type of element is luster.
What is a metal?
100
A change that does not alter the identity of the substance.
What is a physical change?
100
The outermost electrons in an atom.
What is a valence electron?
100
The difference between the nuclear fusion and fission.
What is fusion is small to big, fission is big to small?
200
A metal and nonmetal make this type of bond.
What is an ionic bond?
200
Has the properties of metals and nonmetals.
What is a metalloid?
200
A change that alters the identity of the substance being tested.
What is a chemical change?
200
A positive ion.
What is a cation?
200
The bond that could be classified as polar or nonpolar.
What is a covalent bond?
300
The kind of bond that forms between two metals.
What is a metallic bond?
300
These elements are usually not solid at room temperature.
What is a nonmetal?
300
Cutting up paper would be an example of this type of change.
What is a physical change?
300
A negative ion.
What is an anion?
300
The difference between a pure substance and a mixture
What is a pure substance is made of one atom or molecule, a mixture is made up of two or more atoms or molecules?
400
The kind of bond that forms between a metalloid and a nonmetal.
What is a covalent bond?
400
The definition of malleability.
What is to be able to hammer into thin sheets?
400
Burning wood is an example of this type of change.
What is a chemical change?
400
How an anion is formed.
What is by gaining electrons?
400
The difference between homogeneous and heterogeneous mixtures?
What is homogeneous is the same all the way through, while heterogeneous is not the same all the way through?
500
The unequal sharing of electrons creates this type of bond.
What is a polar bond?
500
The properties of this type of element includes being an insulator, brittle, and gas at room temperature.
What is a nonmetal?
500
The order in which you should test physical and chemical properties.
What is physical properties first then chemical properties?
500
The charge on a Mg cation.
What is a +2 charge?
500
The ion formed from a sulfur atom.
What is -2?
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