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Write the group and period numbers of so...

Write the group and period numbers of sodium from its electronic configuration (Na = 11 = 2, 8, 1)

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To determine the group and period numbers of sodium (Na) from its electronic configuration, we will follow these steps: ### Step 1: Identify the electronic configuration of sodium. The atomic number of sodium is 11, and its electronic configuration is given as 2, 8, 1. This means: - The first shell (K shell) has 2 electrons. - The second shell (L shell) has 8 electrons. - The third shell (M shell) has 1 electron. ...
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ICSE-PERIODIC PROPERTIES OF ELEMENTS -QUESTIONS FOR PRACTICE ON EXAMINATION PATTERN (SECTION II)
  1. Write the group and period numbers of sodium from its electronic confi...

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  2. Name the first and last element in period 2

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  3. The following questions refer to the periodic table. Answer them caref...

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  4. The following questions refer to the Periodic Table : Which of the e...

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  5. What is the common feature of the electronic configurations of the ele...

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  6. If an element has a low ionization energy then it is likely to be ["m...

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  7. If an element has seven electrons in its outermost shell then it is li...

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  8. The metals of group-2 from top to bottom are Be, Mg, Ca, Sr, Ba. Whic...

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  9. What property of an element is measured by electronegativity.

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  10. Look at the atomic radii of some elements of the second period and ans...

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  11. Look at the atomic radii of some elements of the second period and ans...

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  12. Look at the atomic radii of some elements of the second period and ans...

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  13. Name one other element for each which is in the same group as (i) c...

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  14. If the element with atomic number 18 is a noble gas, to which group do...

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  15. The atomic number of helium is 2 and the atomic number of lithium is 3...

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  16. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  17. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  18. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  19. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  20. From the electronic configurations Na (2, 8, 1), Mg (2, 8, 2) and Al (...

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  21. An element belongs to group 17 and period 3 of the periodic table. Wri...

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