An ion is an electrically charged atom or group of atoms.
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Q79: How many hydrogen atoms are in the
Q80: What is the atomic number of potassium?
A)15
B)19
C)46
D)50
Q81: More substances exist as compounds than as
Q82: Homogeneous mixtures of metals are called:
A)ions
B)alloys
C)anions
D)compounds
Q83: All gases exist as diatomic molecules.
Q85: One of the properties of metals is
Q86: In nature most matter exists as pure
Q87: One unit of potassium oxide contains 2
Q88: Consider the chemical formula for one molecule
Q89: Consider the chemical formula for one unit
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