nickel's outside electron shell is not full.
The key to "happiness" for an atom is a full outer electron shell. (The outer electron shell is called the valence shell.) There are two conditions that cause a shell not to be full. Either it has only an electron or two (or three) in the outer electron shell or it's short an electron or two in that outer shell. The direct answer to the question is that if an element is chemically active, its outer electron shell is incomplete or is not full.
The electron shell is full.
Its valence shell is full.
Eight: the valency shell is full.
True!
The key to "happiness" for an atom is a full outer electron shell. (The outer electron shell is called the valence shell.) There are two conditions that cause a shell not to be full. Either it has only an electron or two (or three) in the outer electron shell or it's short an electron or two in that outer shell. The direct answer to the question is that if an element is chemically active, its outer electron shell is incomplete or is not full.
no its outside shell has 10/18 electrons
no it only has 1 electron in the outer shell
The electron shell is full.
Where there are 8 electrons in the outer shell so a full shell. Elements are reactive when they need to lose or gain an electron. The noble gases are unreactive as they have a full outer shell.
Its valence shell is full.
It will gain an electron so that it can complete a full outer shell of 8 electrons.
Bromine has 7 electrons in its outer shell and needs to gain one electron to have a full outer shell and become an ion. It will gain this electron from an atom that has one electron in its outer shell such as Lithium or Sodium.
Eight: the valency shell is full.
It has a relatively high positive charge on its nucleus, a small atomic radius, only one electron shell between its nucleus and its outer electron shell, and is one electron short of a full outer shell.
No. Nuclear fission is a process that involves the nucleus, not electron shells.
An electron shell is the outermost shell in an atom. This is where you'll find bounding power in the atom. Atoms in the last column of the periodic table have the full outer most shell and are most stable.