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Certain elements combine with other atoms, donating, accepting or sharing electrons in different proportions depending on the nature of the reaction. For example, iron combines with oxygen to form ferrous oxide as well as ferric oxide. In the formation of ferrous oxide, iron exhibits a valency of +2, whereas in ferric oxide, it has a valency of +3. This is termed variable valency
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∙ 11y ago
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∙ 15y agothis is when an atom has more than one valency
for example, iron can have a valency of 2, if it is iron (II), or similarly, it can have a valency of 3, if it is iron (III)
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∙ 12y agothe elements which show different valencies are said to be variable valencies
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∙ 13y agoThe elements which are known as Transition elements shows variable valencies .................
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∙ 12y agoVariable valencies are the valencies which can change e.g. Fe (iron) can either have the valency of 2 (Fe II) or 3 (Fe III)
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∙ 7y agoValencies of gold are between -1 and +5; the most common are +1 and +3.
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What are the valencies of the elements of the periodic table?
kuru
What is the coordination geometry of CoCl2 6H2O?
CoCl2.6H2O has 6 water molecules attached as secondary valencies and 2 chlorine atoms are serving as the primary valencies. The secondary valencies are directional in nature and hence they lead to the geometry of it. The geometry of this compound is Octahedral with cobalt showing a coordination no. of 6.
One important property of an element is its what?
I guess, the most fundamental is their valency. This dictates how many times it can bond to other elements. Elements with the same valency often share similar properties with other elements with the same valency. The periodic table is divided into 8 rows (and a D block). Each of these 8 rows have elements with similar properties, related to their valencies.
What is uranium ions?
Uranium can form in solutions ions with valencies 3,4,5,6.
How can an element have fractional valencies or two integral valence states at a time?
atsgdxs
What do you mean by variable valency?
Variable valencies are the valencies which can change e.g. Fe (iron) can either have the valency of 2 (Fe II) or 3 (Fe III)
Why are elements in the tall columns in the periodic table called representative elements?
Conventionally representative elements are called the chemical elements from the groups 1,2, 13-18. These elements haven't generally variable valencies. The transitions metals are not representative elements.
What are the valencies of the elements of the periodic table?
kuru
How do the periodic properties of the d-block elements compare with those of the main group elements?
The main group elements have fixed valencies but members of the d block have multiple valencies.
What is mean by valency?
Variable valencies are the valencies which can change e.g. Fe (iron) can either have the valency of 2 (Fe II) or 3 (Fe III)
Valencies of elements till atomic number 30?
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What is the valency of Co?
The common valences of cobalt are +2 and +3.
Valencies of all elements?
The valency of an element refers to the combining power of a given element. The valencies of all the elements is contained in the table of valencies. The valencies of the elements can be obtained by looking at the groups in the periodic table.
Valencies of the first 20 elements?
Period 1 (Elements 1 and 2)1s1 - 1s2Period 2 (Elements 3 - 10)2s1 - 2s22p6Period 3 (Elements 11 - 18)3s1 - 3s23p6Period 4 (Elements 19 and 20)4s1 - 4s2
Why some elements like Iron have variable valancies?
pata nahi hai hahaha
What valencies is vanadium likely to have?
Vanadium has the following valencies: 2, 3, 4 and 5.
What are 2 elements that share many properties with copper?
Silver and gold, the other two occupants of periodic table column 11.
