Chapter 17:The periodic table of elements
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11 Terms
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Metallic bonds
________ are very strong and thus, high heat can overcome the forces of attraction.
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Halogens
________ are very reactive non- metals because they have seven electrons in their outermost shell.
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Alkali metals
________ get oxidised and therefore, they work as strong reducing agent.
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horizontal rows
The elements in the periodic table are divided into periods and groups.Periods are ________.
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non metallic
The elements in the periodic table can be classified based on their metallic and ________ properties.
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periodic table
A(n) ________ is a listing of elements that are regulated in order of increasing atomic (proton) number.
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imaginary diagonal line
There is a(n) ________ in the periodic table.
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metallic bonds
The ________ are easily disrupted by heat.
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Alkali metals
________ are very reactive.
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Halogens
________ are those elements that are located in the group seven of the periodic table.
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Alkali metals
________ lose electrons and become positively charged ions.