Explain about atomic radius, Chemistry

Assignment Help:

Q. Explain about Atomic Radius?

The atomic size decreases with increase in atomic number  along any period in the long form of the periodic table due to increase in effective nuclear  charge. Though, the decrease in atomic radius is small when the difference in electronic configuration from one element to the next is that of an additional inner electron. This is due the additional inner electron screens the size-determining outer electrons from the nucleus much better than an additional outer electron. For example, decrease in the covalent radius from Sc to Zn; i.e., across ten elements of the 3d transition series, is 19 pm. this.  Decrease is almost one-third of the decrease in the covalent radius of the seven elements of s and p blocks of the period 3.


Related Discussions:- Explain about atomic radius

The maximum number of electrons, The maximum number of electrons in p -orbi...

The maximum number of electrons in p -orbital with n= s, m=1  is: (1) 6        (2) 2       (3) 14       (4) 10 Ans: 2

Structure of covalent bonds, Q. Structure of Covalent Bonds? Ans. ...

Q. Structure of Covalent Bonds? Ans. A covalent bond forms between elements that are near each other in the periodic table While an ionic bond involves an exchange of e

Define the planck constant, Q. Define the Planck constant? The energy o...

Q. Define the Planck constant? The energy of a photon ( E photon) of a certain frequency (violet) is able to be calculated by using the following equation in which h represen

Lanthanides and actinides, can you describe how the valance shell electron ...

can you describe how the valance shell electron configuration affectst the reactivity of the elements in the lanthanides and actinides series?

Periodic table, solubility of s-block elements to flame test

solubility of s-block elements to flame test

Lithium aluminum hydride, Lithium aluminum hydride Lithium aluminum hy...

Lithium aluminum hydride Lithium aluminum hydride reduces the carbonyl group to an alcohol.

Characteristics of tautomerism - isomerism, Characteristics of tautomerism ...

Characteristics of tautomerism (a) Tautomerism (cationotropy) is caused by the oscillation of hydrogen atom between two polyvalent atoms present in the molecule. The modificati

Write equation using lewis structures, One way to create ethanol for use as...

One way to create ethanol for use as a gasoline additive is the reaction of water vapor with ethylene: a. write this equation using Lewis structures. b. Is this reaction e

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd