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Write the correct symbol: gt [greater th...

Write the correct symbol: `gt` [greater than] or `lt ` [less than] in the statements:
The electronegativity of iodine is __________ that of chlorine.

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Write the correct symbol: gt [greater than] or lt [less than] in the statements: The ionization potential of potassium is __________ that of sodium.

Rewrite the following sentences by using the correct symbol gt (greater than) or lt (less than) in the blanks given : The electronegativity of lodine is .................. that of Chlorine.

Electronegativity of fluorine is greater than that of chlorine.

Rewrite the following sentences by using the correct symbol gt (greater than) or lt (less than) in the blanks given : The ionization potential of Potassium is ................. that of Sodium.

Comment over the following statement The electronegativity of Pb is higher than that of Sn.

Why is the electron affinity of chlorine greater than that of fluorine ?

The negative electron gain enthalpy of fluorine is less than that of chlorine.

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ICSE-PERIODIC PROPERTIES OF ELEMENTS -QUESTIONS FOR PRACTICE ( Fill in the blanks by using correct word/term given in the brackets and rewrite the complete sentence in your notebook.)
  1. Period 1 contains elements. (two/eight)

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  2. The elements in a period have valencies. (same/different).

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  3. In the modern periodic table, elements are classified according to the...

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  4. Elements in the same group have chemical properties. (similar/differe...

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  5. As we move across a period from left to right, metallic character (de...

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  6. As we move across a period from left to right, nonmetallic character (...

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  7. The atomic size of lithium is than that of sodium. (greater/smaller).

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  8. Properties of the elements mainly depend on their . (electronic config...

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  9. Fluorine is electronegative than lithium. (more/less)

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  10. Atomic size decreases in a of the periodic table as the atomic number ...

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  11. In a group, the atomic size from top to bottom. (increases / decreases...

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  12. Ionisation energy decreases in a as atomic number increases. (group/p...

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  13. Ionisation energy of sodium is than that of potassium. (more/less)

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  14. If an element of period 2 has one electron in its outermost shell, the...

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  15. The element at the bottom of a group would be expected to show metalli...

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  16. Properties of the elements are a periodic function of their . (atomic...

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  17. The ionisation potential of potassium is ​that of sodium. (gt//lt)

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  18. Write the correct symbol: gt [greater than] or lt [less than] in the ...

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  19. If an element has a low ionisation energy, then it is likely to be . (...

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

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