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Why scandium has valency of 3 whereas its outer shell has only two electrons?
scandium belongs to 3d series and in scandium in addition to 2 electrons in 4s one electron of 3d subshell also takes part in bonding so its valency is three despite of only two electrons in outer shell. remember valency is no. of electrons taking part in bonding
Does oxygen exihibit variable valency?
it does. for example in H2O oxygen has a valency 2 while in hydrogen peroxide H2O2 oxygen exhibits valency 1
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 color is scandium?
what is the color of scandium?
What level is scandium?
There is not a level associated with scandium.
Why scandium has valency of 3 whereas its outer shell has only two electrons?
scandium belongs to 3d series and in scandium in addition to 2 electrons in 4s one electron of 3d subshell also takes part in bonding so its valency is three despite of only two electrons in outer shell. remember valency is no. of electrons taking part in bonding
How many electrons are in the scandium valence shell?
The element scandium has 21 electrons. However, most of these occupy the inner orbitals. The only electrons in the valence shell are those in the 2s orbital. Since there are two such electrons, scandium has 2 valence electrons.
What non-metals has no variable valency Zn Cu Fe N?
Zinc (Zn) does not have variable valency
Can elements with variable valency can be stored in water?
Yes elements with variable valency can be stored in water. example Phosphorus.
How do you find out valency of manganese?
Manganese is a transition element and has a variable valency but generally has a valency of 2 and exists as Mn2+
What is the valency of tin in the periodic table?
The valency of tin is variable. It can either be 2 or 4.
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)
Does gold exhibit a variable valency?
I dont know it
Does oxygen exihibit variable valency?
it does. for example in H2O oxygen has a valency 2 while in hydrogen peroxide H2O2 oxygen exhibits valency 1
What is valency iron?
Iron has variable valence. It can be either 2 or 3.
What charge is copper 2 solphide?
Copper II sulphate has variable valency properties, which translates to variable charges.
Why does a d-block have elements a variable valency?
because they have one valence electron
