No. The first three noble gases (helium, neon and argon) have 1, 2 and 3 energy levels respectively.
No, not all noble gases have at least 3 electron shielding layers. The noble gas helium (He) has only two electron shielding layers, while the remaining noble gases (Neon, Argon, Krypton, Xenon, and Radon) have three or more electron shielding layers.
No. He the lightest has only one 1s2. Neon is 1s2 2s2 2p6 so depending what you understand by the term layers - it either has two (complete shells) or three.
No. Not sure what you mean by a shielding layer- I would take this as the filled electron shells below the "outer", highest energy layer-- He has none, Neon has one , Argon has two.
The least reactive gases are the noble gases, which include helium, neon, argon, krypton, xenon, and radon. These gases have full outer electron shells, making them stable and unlikely to form chemical bonds with other elements. As a result, noble gases are typically found in their elemental form and do not readily participate in chemical reactions.
Noble gases are called inert gases because they are the least reactive elements due to their stable electron configuration. They have a full outer electron shell, making them highly stable and unlikely to form chemical bonds with other elements. This inertness gives them low reactivity under normal conditions.
the noble gases are the least reactive(thats group 18) followed by group 14
No. They are the least because their energy levels are full.
An electron.
noble gases are least reactive
The noble gases are the least reactive elements on the periodic table. They have a full outer electron shell, making them stable and unlikely to participate in chemical reactions.
the electron cloud is least dense where the probability of finding an electron is LOWEST
No. If waht is meant are the layers below the outer layer then:- He has no shielding layer (electronic configuration 1s2) Neon has only one, electronic configuration 1s2, 2s2 2p6