A noble gas.
carbon dioxide
The element with the densest noble gas is radon (Rn). It is a radioactive noble gas that is heavier than the other noble gases, making it the densest.
The tenth chemical element in the periodic table is neon (Ne).
The element nitrogen is closest to the noble gas neon on the periodic table.
Ni, Nickel is NOT a representative element.
noble gas - hence element
no boron is not a noble gas but it is a nonmetal
Magnesium element has no relation with noble gas. But Mg2+ ions and noble gas neon are isoelectronic.
no. chlorine is a halogen (a group 17 element) and not a noble gas (a group 18 element). However chloride ion will have the same electronic configuration as the noble gas, argon
The element symbol for the noble gas in the second period is He, which stands for Helium.
"Tg" is not an element, so it cannot be a noble gas.