gain 2 electrons
This atom must gain 3 electrons to achieve an octet.
Selenium has four electron shells.
An octet of electrons is when the outermost electron shell of an atom contains eight electrons.
The atom simply donates, gains, or shares electrons in order to either reach its octet or reduce its electronegativity
Yes it does.
gain 2 electrons
The octet rule cannot be satisfied in molecules whose total number of valence electrons is an odd number.There are also molecules in which an atom has fewer, or more, than an octet of valence electrons.
Sulfur must to have an electrons octet.
This atom must gain 3 electrons to achieve an octet.
Selenium has four electron shells.
Sodium would LOSE 1 electron to satisfy the octet rule.
Sulfur hexachloride is an inorganic compound consisting of two different elements. The prefix hexa indicates that there are six chloride atoms. Thus, the formula is SCl6. Note that this compound does not obey the octet rule.
An octet of electrons is when the outermost electron shell of an atom contains eight electrons.
34
Selenium
Atomic number= No. of electrons in the atom. Atomic no. of selenium=34. Therefore,selenium has 34 electrons in each of its atom.
when the outer most shell of an atom was said to have 8 electrons then it was said to possess an octet