This element doesn't exist.
Bromine and Chlorine both have equal chemical properties. They both have 7 electrons in the outermost energy level. They both gain 1 electron to get the noble gas configuration.Cl and Br have same chemical properties. They have 7 valence electrons. They both are non-metals.
Chlorine is very reactive because it is a halogen (Group VII of the Periodic Table) and it does not have a filled outermost energy level. Argon is unreactive because it is a noble gas (Group VIII of the Periodic Table). Its outermost energy level is full.
Lithium is in group 1 of the Periodic How_many_electrons_must_the_lithium_atom_give_up_to_become_stable, so it must lose one electron for it to attain a full outermost energy level and become stable.The charge will then be positive (+).
Helium has two valence electrons. It is the only noble gas not to have eight valence electrons. Helium has the electronic configuration 1s2.The Noble gases have eight valence electrons in their outer shell.
None, it is a noble gas.
There are no noble gases in the first energy level. Noble gases are found in the last (highest) energy level of an atom. The first energy level can only hold a maximum of 2 electrons, while the noble gases have completely filled outermost energy levels.
yes.they have the maximum number of electrons in their outer energy level?
8
Helium has 2 valence electrons. All other noble gases have 8 valence electrons.
Yes, the outermost energy level of the atoms of the noble gases are filled, meaning that they have the maximum number of electrons. This is why noble gases are stable and unreactive. The atoms of reactive elements share or transfer electrons in order to fill their outermost energy levels, making them stable like the noble gases.
Noble gas
Noble gases (except for helium which has 2 valence electrons).
8 electrons
Valence electrons are electrons in the outermost shell (or outermost energy level or outermost orbital) in an atom. Noble gases have 8 valence electrons. But helium (a noble gas) has only 2 valence electrons.
noble gases
Helium
The noble gasses.