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What is helium ions?
Helium ions can be synthesized by removing electrons from a helium atom and it would need a tremendous energy.
Why do hydrogen and helium only need to valance electrons?
Hydrogen and helium only need two valence electrons to achieve stability because they aim to fill their outer electron shell, which is the first shell that can accommodate a maximum of two electrons. Hydrogen has one electron and can bond with another hydrogen atom to complete its shell, while helium already has two electrons and is stable as is, fulfilling the criteria of the "duet rule" for these light elements. This contrasts with heavier elements that follow the octet rule, requiring eight electrons for stability.
A helium he atom has 2 electrons that are both in the outermost energy level how many more electrons does the atom need to fill its outermost energy level?
It is the most stable element in the universe and does not need anymore electrons. Its outermost energy level is full.
Which atom does not need 8 electrons in it outer energy level to be stable?
Hydrogen is an atom that does not need 8 electrons in its outer energy level to be stable. Hydrogen only needs 2 electrons to fill its outer energy level.
How many valance electrons do most elements need to have a stable electron configuration?
8 valance electron
What makes a group not reactive on the periodic table?
A full octet, valance shell. A valance shell with eight electrons, such as the Nobel gases have, doe not need to donate or accept electrons into or out of the valance shell to be stable.
Is argon a reactive element?
Not really. Argon is a Nobel gas with a full valance octet; 8 valance electrons that do not need to accept or donate electrons to be '' happy. ''
How many electrons are in the outer energy level of a helium atom?
Helium and hydrogen and group 3 to 12 got 2 valence electron
What has 2 electrons and 2 protons?
The atomic number of an element tells us that atom's number of protons. If the atom is neutral, its number of protons is going to equal its number of electrons. Thus, we need only find the element with the atomic number of 2, which is helium.
How does covalent bonding satisfy the octet rule?
Electrons are shared- giving each atom a share of 8 electrons. Note that this "rule" does not work for hydrogen as only two electrons need to be shared to give each H atom the electronic configuration of He, helium.
Is it true that the octet rule acquires the valence electrons total?
Yes that is true for the first 20 elements, except helium and hydrogen which needs 2 valance electrons to be complete. After 20, things change, but we don't need to worry about it at the basic level.
How many electrons must be gained or lost for each of the following to achieve a noble gas electron configuration Lithium atom Bromine atom Barium ion Helium atom?
sodium must lose 1 electron, helium is a noble gas it is in group 8 check your periodic table, sufide ion must gain 2 electrons
