Groups are made according to the properties of elements. Noble gasses have similar properties. So they comes in the same group.
Noble gases have complete octet. They are kept in same group-18.
They should gain 2 electrons to attain noble gas electronic configuration. (it doesn't become a noble gas as the number of protons are not same)
The noble or inert gases.
Noble Gas
noble gas
Xenon is a noble gas. It belongs to noble gas family or group 18 on the periodic table.
No. Halogens are group 17 elements. Noble gases are group 18 elements.
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
Group-18 belongs to noble gases. The elements of this group are stable.
The noble gas that comes before bromine is argon.
The noble gas that comes before iodine is krypton.
Neon is the second in the Noble Gases group or Group XVIII (18)
group 18
They should gain 2 electrons to attain noble gas electronic configuration. (it doesn't become a noble gas as the number of protons are not same)
Chlorine is not a member of noble gas group. It belongs to halogen family.
The noble or inert gases.
Elements in Group 1 have 1 more electron than the noble gas in the row above it.Elements in Group 2 have 2 more electrons than the noble gas in the row above it.Elements in Group 15 have 3 less electrons than the noble gas in the same row as it.Elements in Group 16 have 2 less electrons than the noble gas in the same row as it.Elements in Group 17 have 1 less electrons than the noble gas in the same row as it.
Helium is a noble gas and the other noble gases are neon, krypton, xenon, argon and radon.