0
The valency of an element indicates the way it will react in a chemical reaction. For example, oxygen has six outer electrons and only needs eight electrons to have a complete outer shell. It can either lose six electrons or gain two electrons. It is easier for an oxygen atom to gain two more electrons and therefore its valency is 2.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
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
What is the valency of sulfur in sulfuric acid?
+6 valency
What is the valancy for Cr2O7?
It is a compound, it has no valency. The Cr in it has a valency of +7
What is the valency of Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium?
valency of Rf =4 valency of Db=5 valency of Sg=6 valency of Bh=7 valency of Hs=8 valency of Mt=unknown
Why does sulfur have variable valency?
Oxygen is divalent, but sulphur exhibits variable valency of 2, 4 and 6 because of the presence of d -orbitals in sulphur. In sulphur, the excitation of np -electrons to nd -sub-shell gives rise to increase in number of unpaired electrons. Option D is correct.
What is the valency of trioxide?
S = +6 valency O = -2 valency
Why does oxygen have a valency of 2 when the electron arrangement is 2 6?
the valence is the outer level
What is valency electrons of oxygen?
6
What is the valency of sulphur in so2?
38.
What is the valency of sulphur in SO3?
Things are complicated if we use the term valency. It is better to use the term Oxidation state or Oxidation Number. In SO2, the oxidation state of sulphur is +4 and In SO3, the oxidation state of sulphur is +6.
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!
Formula of barium nitride?
Barium is in group 2, so has a valency of 2. Nitrogen is is in group 15, so has a valency of 3. You have to get the total valencies to equal so: Ba3N2. Total valency of Ba=3x2=6. Total valency of N=2x3=6.
What is the valency of ferrum?
2, 3, 4, 6.
What is the valency of an element with atomic number 8?
Carbon has a valency of 2, 4. Which might be useful information if it were either a) correct or b) relevant (the atomic number of carbon is 6). The element with an atomic number of 8 is oxygen, which has a valence of 2 (and a most common oxidation number of -2).
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
What is the charge for a group six ion?
The most common charge (or valency) is -2. But there are compounds formed by elements of group VIA with valency from -2 to +6
What is the valency of sulfur in sulfuric acid?
+6 valency
