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Why some elements have variable valencies?
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
Why Mn2 plus ion show maximum paramagnetic character amongst the bivalent ions of first transition series?
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25.Paramagnetism in the transition elements is caused by the presence of unpaired electrons in the d sub-orbital, and results in these elements being attracted by a magnetic field.Thats why mn show maxium paramagnetic character among ions of first transition elements.
What is Typical and non typical transition element?
group IIB elements (Zn Cd,Hg) don't have partially filled d-subshell either in elements or in their ionic ionic state, and neither they show typical properties of transition elements.... Elements of group IIIB are also non typically. From Lion Heart Baloh
Why does periodic table show phosphate having valency of 5 yet it is really valency 3?
You have mistaken Phosphate for Phosphorus. Phosphorus is in Group 5 of the periodic table. Group 5 elements generally have a valency of 3, but it is also possible for them to have a valency of 5... Below are two examples of compounds, one using Phosphorus with valency 5 (V) and one using Phosphorus valency 3 (III) : Phosphate (phosphorus with maximum oxygen) This is formed by Phosphorus (V) + 4 Oxygen. Oxygen has valency -2, thus... 5 + 4 x -2 = 5 - 8 = -3 So we can see that Phosphate has a charge of -3 (or in other words a valency of 3) Phosphite (phosphorus with one less than maximum oxygen) This is formed by Phosphorus (III) + 3 Oxygen, and so... 3 + 3 x -2 = 3 - 6 = -3 So we can see that Phosphite also has a valency of 3 Hope this helps!
Which elements show catenation?
Elements like Silicon and Carbon show catenation.
Why some elements have variable valencies?
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
What is the valency of all 2A elements?
All 2A elements show the valency of two.
What is the valency of group 6 elements?
If you mean the oxygen group, it is more properly known now as group 16. Oxygen has a valency of 2, but the other members of the group show various valencies. Sulfur can be 2, 4 or 6, as can selenium, tellurium and polonium. Little is known about livermorium. In modern usage, group 6 is chromium, molybdenum, tungsten and the radioactive seaborgium. These are transition metals and as such show variable valency. Common ones include 2, 3 and 6. Molybdenum and tungsten also exhibit valencies of 4 and 5.The Royal Society of Chemistry's interactive periodic table is a great source of such information.http://www.rsc.org/periodic-table/?gclid=CjwKEAjw2MOhBRCq-Nr87_j-lDASJAAl4FNhssVbsyCT_UjwmmrpVjUngib6tHybHy88YrC1gH_1shoCZDzw_wcB
Why transition metals possess variable valency?
they posses variable valency because of extra stablity of (n-1)d orbital...
Why Mn2 plus ion show maximum paramagnetic character amongst the bivalent ions of first transition series?
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25.Paramagnetism in the transition elements is caused by the presence of unpaired electrons in the d sub-orbital, and results in these elements being attracted by a magnetic field.Thats why mn show maxium paramagnetic character among ions of first transition elements.
Why do transition metals have variable oxidation states?
Transition metals can move electrons between the outer shell and the d d orbital. For example, copper can either lose its 2 s electrons or move one of those s electrons into d orbital, which is one electron short of being full.
What is Typical and non typical transition element?
group IIB elements (Zn Cd,Hg) don't have partially filled d-subshell either in elements or in their ionic ionic state, and neither they show typical properties of transition elements.... Elements of group IIIB are also non typically. From Lion Heart Baloh
What do all of the transition metals have in common?
RAWR Say hi to Natalie the Dinosaur :DDD -Imma eat you-
Why does periodic table show phosphate having valency of 5 yet it is really valency 3?
You have mistaken Phosphate for Phosphorus. Phosphorus is in Group 5 of the periodic table. Group 5 elements generally have a valency of 3, but it is also possible for them to have a valency of 5... Below are two examples of compounds, one using Phosphorus with valency 5 (V) and one using Phosphorus valency 3 (III) : Phosphate (phosphorus with maximum oxygen) This is formed by Phosphorus (V) + 4 Oxygen. Oxygen has valency -2, thus... 5 + 4 x -2 = 5 - 8 = -3 So we can see that Phosphate has a charge of -3 (or in other words a valency of 3) Phosphite (phosphorus with one less than maximum oxygen) This is formed by Phosphorus (III) + 3 Oxygen, and so... 3 + 3 x -2 = 3 - 6 = -3 So we can see that Phosphite also has a valency of 3 Hope this helps!
How chalcogens form glass and sHow is p-n transition?
how chalcogens form glass and show p-n transition
What family is a very reactive group of mostly nonmetals whose gain or share one electron in chemical reactions?
Group 17 elements, 'Halogens', have seven electrons in their valence shell and show the valency of 1. 4 of the 5 elements in that group are non metals including fluorine, which is the strongest.
Oxidation numbers for five common transition elements?
Transition elements usually have more than one oxidation number. In different oxidation numbers, the ions show different colors. Some of the ranges: Cu from +1 to +2; Cr from +2 to +6; Ni from +2 to +3; Co from +2 to +3 and Mn from +2 to +7.
