Atomic no.of an element is 12. what is it valency?
To determine the valency of an element, we need to look at its position in the periodic table. The valency of an element represents the number of electrons it can gain, lose, or share to form chemical bonds.
The atomic number of an element corresponds to the number of protons present in its nucleus. In this case, the atomic number is 12. To find the valency, we need to determine the electronic configuration of the element.
For an element with an atomic number of 12, we can determine its electronic configuration by arranging the electrons in energy levels or shells. The electronic configuration of an element with an atomic number of 12 is 2, 8, 2. This means that the first energy level has 2 electrons, the second energy level has 8 electrons, and the third energy level has 2 electrons.
Valency is determined by the number of electrons in the outermost energy level. In this case, the outermost energy level has 2 electrons, so the valency of the element is 2.
Therefore, the valency of the element with an atomic number of 12 is 2.