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Q: What is the valency in terms of electronic theory?
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What is the valency and electronic configuration of oxygen?

Electron configuration for oxygen (O) is 1s2 2s2 2p4. The valency is 2-.


Why some elements in the periodic table have more than one valency?

because the valency is no of electrons present in last shell and different element have different electronic configuration.


How calculate valency?

Valency is calculated in this way... 1. Find atm no of that element. 2. Write down electronic configuration. 3. Take the valence shell electron number. 4. The number of electrons to be lost are added as the valency.


Valency of titanium?

Titanium has (max.) 4 valence electrons, possible oxidation states: +4, +3, +2, (+1, rare).


Is the electronic configuration of calcium 2882 or 2891?

The electronic configuration of Calcium is 2-8-8-2, therefore the valency of Calcium is +2.


How do you find out valency of mixture or compound?

By the formula 2n2 , we can find no of electrons in shells like, if atomic no. of X is 17 so the electronic configuration is 2,8,7. so the valency is 1 in order to complete its octave.


What is the valency of barium?

As Barium's atomic number is 56 and as it has 2 electrons in its outer shell (this is also due to the fact that it is in Group 2) its valency is 2. It loses 2 electrons to attain the electronic configuration of Xenon whose atomic number is 54, so it is electropositive and is a metal.Therefore its valency is 2+. As Barium's atomic number is 56 and as it has 2 electrons in its outer shell (this is also due to the fact that it is in Group 2) its valency is 2. It loses 2 electrons to attain the electronic configuration of Xenon whose atomic number is 54, so it is electropositive and is a metal.Therefore its valency is 2+.


How do you find valencies of an atom using atomic number or electronic configuration?

The number of electrons on the external level is generally equivalent to valency.


What has the author John Wilfred Linnett written?

John Wilfred Linnett has written: 'The electronic structure of molecules' 'Wave mechanics and valency'


How do you take out valency an element?

Group number 1 = Valency 1+group number 2 = valency 2+group number 3 = valency 3+group number 4 = valency 4+ and 4- (some cases) group number 5 = valency 3-group number 6 = valency 2-group number 7 = valency 1-group number 8 = valency 0For the transition elements they will either state Copper (III) Sulphate or it will be like Cu2(SO4)3You can find the valency by the base of sulphate and you know its positive because metals are always positive and are written in the left.Source: I am a GCE O Level Sciences Student (O2)


What is the valency of lithium?

valency of lithium - 1


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