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Byju's Answer

Standard VII

Chemistry

Sub-Atomic Particles

an element wi...

Question

an element with atomic number 11 is an alkali metal. into wich families should you place elements with atomic number 10 and 12

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Solution

As alkali metal is the 1st group present in modern periodic table, therefore element with atomic number 10 should be placed in the last group i.e. Noble gases.
The next group to the alkali metal is alkaline earth metals therefore, element with atomic number 12 should be placed in alkaline earth metals.

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is placed in the group

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is placed above and with atomic number

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is placed below it. Element with atomic number

16

is placed left and with atomic number

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is placed right to it. Which of the following statements are correct?

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9

17

and

35

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17

is more electronegative than element with atomic number

16

and

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