3/22/2019 · We know that the atomic number of selenium is 34.So selenium has 34 protons and 34 electrons as the charge of electrons and protons are equal but opposite in nature.The charge of proton is +1 and the charge of electron is -1. Step-3: Now write the electron configuration of selenium . Se (34)=1s²2s²2p?3s²3p?4s²3d¹º4p?.
In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. The presence of valence electrons can determine the element’s chemical properties, such as its.
Selenium specifically has an electron configuration of 2-8-18-6. The six electrons in the outermost shell allow selenium to have a variety of valence numbers. Selenium compounds have been found that have valences of -2, 4, and 6. Speaking of the number six, selenium is found to.
Valence electron – Wikipedia, Valence electron | Definition of Valence electron at …
Valence electron – Wikipedia, Valence electron – Wikipedia, 5/27/2011 · For example, we know the element selenium has four orbital shells because it is in the fourth period. Since it is the sixth element from the left in the fourth period (ignoring the transition metals), we know that the outer fourth.
Electron Configurat…, Covalent Bond, Electronegativity, Octet Rule, Atomic Orbital
