与 «ELECTROVALENCY»相关的英语书籍
在以下的参考文献中发现
electrovalency的用法。与
electrovalency相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Modern Inorganic Chemistry
Thus the binary compounds having ionic bonding are most readily formed by the
elements of groups IA and IIA with oxygen (group VIA) and halogens (VIIA group)
elements. Electrovalency Electrovalency of an element is its combining ...
R.D.Madan & Satya Prakash, R. D. Madan,
1987
2
Comprehensive Chemistry XI
... the maximum covalency is equal to the number of half-filled orbitals only
because they do not have vacant orbitals in the valence shell. 5. VARIABLE
ELECTROVALENCY There are many elements which exhibit variable
electrovalency.
Dr. N . K. Verma, S. K. Khanna, Dr. B. Kapila
3
Science for Ninth Class Part2 CHEMISTRY
Types of Valency There are two types of valency : Electrovalency and Covalency.
If an element combines by the loss or gain of electrons to form electrovalent
compounds (or ionic compounds), its valency is known as electrovalency, and if
an ...
Lakhmir Singh, Manjit Kaur, lakhmir singh and manjit kaur
4
Competition Science Vision
Variable Electrovalency The electrovalency of an element is equal to the number
of electrons lost or gained by its atom during the formation of ionic bond. The s-
block elements do not show variable valency, however, p-block elements (with ...
5
Introduction to Inorganic Chemistry
The concept of electrovalency can be extended to atoms in semi-polar molecules
. We saw in Chapter 5 that the charge distribution in the HF molecule is
approximately H0.5+F0.5−. Thus if, as for an ion, we set the electrovalency of an
atom in ...
6
Construction Science and Materials
4.2. Electrovalency. and. covalency. The electron configurations of some of the
elements have already been discussed in the previous section. Many elements
have incomplete outside shells. When two of these elements are mixed, they
react ...
7
Fundamental Aliphatic Chemistry: Organic Chemistry for ...
Typical electrovalency is most commonly foundin compounds derived
fromelements situated inthe groups adjacentto the inert gases. Thus a sodium
atom (1s2,2s2,2p6,3s1) may lose the electron occupying the 3s orbital, giving a
sodium ion.
P. W. G. Smith, A. R. Tatchell,
2014
8
Inorganic Chemistry for Undergraduates
6.11.4 VARIABLE ELECTROVALENCY Variable electrovalency – an element
exhibiting more than one valency – arises due to several factors. 6.11.4.1 A
Unstable Electron Configuration of the Core If all the valence electrons from an
atom are ...
9
Excel With Objective Questions In Chemistry
Ionic Bond ; Electrovalency ; Characteristics of ionic Compounds ; Born Haber
Cycle 1. The polarisability of halide ions increases as (a) F- > Br- > Cl- > I- (b) I" >
F- > Cl- > Br~ (c) I- > Br- > Cl- > F- W) Br~ > Cl~ > F- > I~. 2. Four elements A, B, C,
...
Prof. S. K. Khanna, Dr. N. K. Verma, Dr. B. Kapila,
2006
10
Rudiments of Chemistry
Elements can attain nearest inert gas electronic configuration either (i) by actual
electron transfer or (ii) by sharing electron pair or pairs between the combining
atoms. Electrovalency : The combination between a highly electropositive
element ...