Period number = no. of electron shells. Therefore neon has two shells.
The noble gases helium and neon are the only elements with completely full outer shells.
Neon has 0 valence electrons so it is not possible to have an element with fewer valence electrons. There can, therefore, be no such element.
Neon is an element with all its electron shells filled it is a noble gas.
there is no such element
Inert gases
There are 8 valence electrons in the element Neon, as it is in group 18 of the periodic table.
The noble gases helium and neon are the only elements with completely full outer shells.
Neon has 0 valence electrons so it is not possible to have an element with fewer valence electrons. There can, therefore, be no such element.
Neon has 0 valence electrons so it is not possible to have an element with fewer valence electrons. There can, therefore, be no such element.
Noble gases (such as neon) have full valence electron shells (8 electrons).
Neon is an element with all its electron shells filled it is a noble gas.
Argon(Ar) and Helium(He)
The element described has more valence electrons than oxygen but fewer than neon, more protons than sodium but fewer than argon. This element is magnesium, which has 12 protons, 12 valence electrons (2 more than oxygen but 2 less than neon), and is situated between sodium and argon on the periodic table.
Oxygen is the element that has 8 valence electrons and is in the gaseous state at room temperature.
there is no such element
Neon, Argon, Krypton, Xenon, Radon, Ununoclium.
The element which has its valence electrons in the second energy level and is the largest is potassium (K). This is because as you move down a group in the periodic table, the atomic size increases due to the addition of more electron shells.