Chem Ch 6

Which of the following atomic numbers corresponds to an element which is a non-metal?

• 4

• 5

• 13

• 16

The electronic arrangement of an atom of element X is 2, 8, 18, 8, 2. X may have similar chemical properties as

• iodine

• potassium

• calcium

• helium

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The period number of an element is determined by the number of ________ ________ _____ in an atom of that element.

Which of the following pairs of elements would react with each other most vigorously?

• Lithium and fluorine

• Potassium and fluorine

• Lithium and bromine

• Potassium and bromine

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Tennessine is a man-made element that is below astatine in Group VII of the Periodic Table. Which of the following is the expected appearance of tennessine?

• A white solid

• A dark solid

• A dark liquid

• A dark gas

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Which of the following statements is correct?

• A belongs to Group I of the Periodic Table.

• B and D have the same number of outermost shell electrons.

• The electronic arrangement of C is 2, 3.

• E has a duplet electronic arrangement

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The group name of elements B and D is _________.

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Circle the least reactive element and draw its electron diagram below the table.

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State one similarity in the electronic arrangements between T and U.

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State one similarity in the electronic arrangements between U and V.

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