An atom doesn't have a "shell" at all. Electrons orbit an atom at different layers each called a "shell", so your answer is no.
your mom is found in the shell of an atom.
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 is the outermost shell...and an atom can only have one outer shell.
Ammonia is a molecule (NH3) and not an atom.
If you are saying that the second shell is the last shell of an atom, then the two electron in it would be its valence electrons. If the atom has more shells (more than two), then the two electrons inside the second shell will not usually combine with other atoms since it will be hard to obtain. If you are referring to the second group in the periodic table, then the two electrons in its shell will be given to a nonmetal so that it will be happy with 8 electrons in its shell.
The very inner shell of an atom is the 1st shell and can only contain 2 electrons.
an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.
The shell is hard.
The outer shell of an atom is the valence shell, which contains the valence electrons.
Valence shell
Valence shell
The innermost shell of every atom except hydrogen consists of 2 electrons.