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Define electronegativity - Chemistry

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प्रश्न

Define electronegativity

परिभाषा
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उत्तर

The ability of a covalently bonded atom to attract the shared electrons toward itself is called electronegativity (EN).

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Periodic Trends in Elemental Properties
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अध्याय 7: Modern Periodic Table - Exercises [पृष्ठ १०९]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
अध्याय 7 Modern Periodic Table
Exercises | Q 5. (E)(b) | पृष्ठ १०९

संबंधित प्रश्न

Explain the following.

The atomic radii of Cl, I, and Br are 99, 133, and 114 pm, respectively.


Explain the following.

The ionic radii of FΘ and Naare 133 and 98 pm, respectively.


Explain the following.

13Al is a metal, 14Si is a metalloid and 15P is a nonmetal.


Explain the following.

Cu forms coloured salts while Zn forms colourless salts.


Answer the following.

Ionization enthalpy of Li is 520 kJ mol-1 while that of F is 1681 kJ mol-1. Explain.


Answer the following.

Why the elements belonging to the same group do have similar chemical properties?


Choose the correct option.

Consider the elements B, Al, Mg, and K predict the correct order of metallic character:


Choose the correct option.

The lanthanides are placed in the periodic table at


Choose the correct option.

Which of the following pairs is isoelectronic?


Answer the following question.

For the following pair, indicate which of the two species is of large size:

Mg2+ or Ca2+


Answer the following question.

Select the smaller ion form the following pair:

N3–, F


Define ionic radius


What are the valence electrons?


Define ionization enthalpy.


Name the factors on which ionization enthalpy depends?


How does ionization enthalpy vary down the group and across a period?


How the atomic size vary in a group and across a period? Explain with suitable example.


Give reason.

Alkali metals have low ionization enthalpies.


Give reason.

Fluorine has less electron affinity than chlorine.


Give reason.

Noble gases possess relatively large atomic size.


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