two 2s electrons (2s2 ) and 2p electrons 2p2 so 4 all together
negative ion
An octet of electrons is when the outermost electron shell of an atom contains eight electrons.
The outermost occupied energy shell of an atom is the valence shell, and it varies depending on the atom. It can be determined by looking at the period the atom is in on the periodic table.
the valence shell
Electron outer shell tee hee =^-^=
The question is somewhat vague. If the question were written as an atom contains seven electrons in the outermost energy level and that outermost shell is a p-shell then the atom is a halogen. If the atom contains seven electrons in the outermost energy level and that outermost shell is a d-shell or f-shell then the atom is a metal.
negative ion
Its outermost shell contains 8 electrons.
An octet of electrons is when the outermost electron shell of an atom contains eight electrons.
Outermost energy level is full if there are 8 electrons in the valence shell.
Valence electrons are the electrons in the outermost shell of an atom. The ones in the inner shell are known as core electrons.
Valence electrons of any atom are located in the outermost shell that atom carries electrons. For example a carbon atom has 6 electrons: 2e in its first shell (which is full) and 4e (valence electrons) in second shell--there are no electrons farther than second shell for carbon.
The outermost occupied energy shell of an atom is the valence shell, and it varies depending on the atom. It can be determined by looking at the period the atom is in on the periodic table.
There is no Iodone atom, there is however an Iodine atom that has seven valence electrons or seven electrons in outermost shell.
Symbol of carbon is C its valency is +4
the valence shell
Electron outer shell tee hee =^-^=