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How does electronegativity move (a) down...

How does electronegativity move (a) down the group and (b) across the period from left to right?

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Electronegativity goes on decreasing down the group.
It goes on increasing along the period from left to right.
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Metallic Character The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electropositivity decreases due to decrease in atomic size. Non-Metallic Character The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion. Down the group, electronegativity decreases due to increase in atomic size and across the period, from left to right electronegativity increases due to decrease in atomic size Which of the following has highest electronegativity?

Metallic Character The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electropositivity decreases due to decrease in atomic size. Non-Metallic Character The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion.Down the group, electronegativity decreases due to increase in atomic size and across the period, from left to right electronegativity increases due to decrease in atomic size Hydrogen is placed along with Alkali metals in the modern periodic table though it shows non-metallic character

Metallic Character The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electropositivity decreases due to decrease in atomic size. Non-Metallic Character The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion.Down the group, electronegativity decreases due to increase in atomic size andacross the period, from left to right electronegativity increases due to decreasein atomic size Identify the reason for the gradual change in electronegativity in halogensdown the group.

Metallic Character The ability of an atom to donate electrons and form positive ion (cation) is known as electropositivity or metallic character. Down the group, metallic character increases due to increase in atomic size and across the period, from left to right electropositivity decreases due to decrease in atomic size. Non-Metallic Character The ability of an atom to accept electrons to form a negative ion (anion) is called non-metallic character or electronegativity. The elements having high electro-negativity have a higher tendency to gain electrons and form anion. Down the group, electronegativity decreases due to increase in atomic size and across the period, from left to right electronegativity increases due to decrease in atomic size Which of the following reason correctly justifies that “Fluorine (72pm) has smaller atomic radius than Lithium (152pm)”?

(a) Electropositive nature of the element(s) increases down the group and decreases across the period (b) Electronegativity of the element decreases down the group and increases across the period (c) Atomic size increase down the group and decreases across a period (left to right) (d) Metallic character increases down the group and decreases across a period On the basis of the above trends of the periodic table, answer the following about the electron with atomic number 3 to 9 (a) Name the most electropositive element among them (b) Name the most electronegative element (c) Name of the element with smallest atomic size (d) Name the element which is a metalloid (e) Name the element which shows maximum valency.

CENGAGE CHEMISTRY-APPENDIX - INORGANIC VOLUME 1-Exercise very short
  1. Why do alkali metals have lowest ionisation energy?

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  2. Why are lanthanides and actinides place at the bottom of the periodic ...

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  3. How do the basicity and solubility in water vary from Be(OH)(2) to Ba(...

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  4. Why are cations smaller than neutral atom?

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  5. Why are anions bigger than neutral atom?

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  6. Which is the smallest among Na^(o+),Mg^(2+),Al^(3+), and why?

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  7. Which has the largest ionic radius Ca^(2+),Mg^(2+),Ba^(2+)?

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  8. Define (a) metallic radius and (b) van der Waals radius.

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  9. Electronegativity

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  10. How does electronegativity move (a) down the group and (b) across the ...

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  11. Write general electronic configuration of p-block elements.

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  12. What is the nature of oxides formed by most of p-block elements?

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  13. Indentify the atom or ion which has larger radius in each of the follo...

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  14. Among the elements , Li, K, Ca, Cl and Kr, the element K has the lowes...

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  15. Which of the following pairs of elements would you expect to have lowe...

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  16. Why does the first ionisation energy increase as we go from left to ri...

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  17. Which out of the N or O has higher electron gain enthalpy?

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  18. Which of the following pair would have larger size? a.K or K^(o+) , ...

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  19. Atomic number (Z) of elements is 108. Write its electronic configurati...

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  20. Out of Na and Mg which has higher second ionisation energy?

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