They all have a fully filled up outer valence electron shell: noble gases, mono atomic, inert.
(2 for Helium, 8 for all others; Neon, Argon, Krypton, Xenon, and Radon)
the same number of valence electrons
full octets
the same number of electrons needed to fill thier octet
full octets
the same number of valance electrons
the same number of electrons needed to fill their octet
-apex
because they are all unreactive
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
GROUPS have more in common than PERIODS. I don't know why, I just know the answer.From, Bryan Hollick
The Group 18 elements are called the noble gases or sometimes inert gases. Wikipedia has information on the noble gases, and a link is provided.
That is the group of noble gasses: 18 (VIIIA)
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
all have 8 electrons in the valence shell
GROUPS have more in common than PERIODS. I don't know why, I just know the answer.From, Bryan Hollick
All elements in Group 18 are classified as Noble Gases. As such, their outermost shell (or "orbital") is full of electrons making them highly stable. Only a handful of elements are capable of stealing their electrons.
Group 18 is made up of noble gases.Common names are Helium,neon,argon,krypton,xenon and radon.They are most stable elements in the table.
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group-18 belongs to inert elements. The elements attain stability.
The elements in group 18 are extremely reactive and re reffered to as the noble gases********************2nd Opinion ******************The elements in group 18 are extremelyun-reactive.
Noble gases (or group 18 elements)
Group-18 belongs to noble gases. The elements of this group are stable.
The Group 18 elements are called the noble gases or sometimes inert gases. Wikipedia has information on the noble gases, and a link is provided.