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Non-metals have high density.

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Important Questions on Metals and Nonmetals

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Which of the following non-metals is liquid at room temperature? 
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If the number of electrons in an ion Z3- is 10, the atomic number of element Z will be:
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The particle which is formed by the gain of electrons by an atom is called_____
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What do metals displace from acids when they react with them?
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The number of protons in one atom of an element X is 8. What will be the number of electrons in its ion X2-?
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The atomic number of an element E is 16. The number of electrons in its E2- will be:
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Which of the following non-metal is a good conductor of electricity?
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Atoms which gain electrons are said to be _____
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The anion of an element has:
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The reaction of metals with acid gives out _____ gas.
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Metals react with acids to produce
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Generally, non-metals are non-conductors of electricity. The non-metal which is a good conductor of electricity, is:
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_____ gas is liberated when metals react with acids.
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Elements X,Y and Z have atomic number 6,9 and 12 respectively. Which one of the given elements forms an anion and cation, respectively?
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Metals react with acids to produce _____ gas. (Name the gas)
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A particle X has 17 protons, 18neutrons and 18 electrons. This particle is most likely to be: 
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Metals react with acids to produce _____ gas. (Name the gas which is evolved)
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_____ gas is released when a metal reacts with an acid.
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If a substance forms acidic oxide or neutral oxide it will be a _____.
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The non-metal which is a good conductor of electricity is: