English

Answer the following question. What are the valence electrons? - Chemistry

Advertisements
Advertisements

Question

What are the valence electrons?

One Line Answer
Advertisements

Solution

Electrons present in the outermost shell of the atom of an element are called valence electrons.

shaalaa.com
Periodic Trends in Elemental Properties
  Is there an error in this question or solution?
Chapter 7: Modern Periodic Table - Exercises [Page 109]

APPEARS IN

Balbharati Chemistry [English] Standard 11 Maharashtra State Board
Chapter 7 Modern Periodic Table
Exercises | Q 5. (G). i. | Page 109

RELATED QUESTIONS

Explain the following.

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

Explain the screening effect with a suitable example.


Answer the following.

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


Answer the following.

Explain electronegativity and electron gain enthalpy. Which of the two can be measured experimentally?


Choose the correct option.

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


Choose the correct option.

If the valence shell electronic configuration is ns2np5, the element will belong to


Answer the following question.

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

Fe2+ or Fe3+


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


Name the factors on which ionization enthalpy depends?


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.

Inert gases have exceptionally high ionization enthalpies.


Give reason.

Noble gases possess relatively large atomic size.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×