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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

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12y ago
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13y ago

full octets

the same number of valance electrons

the same number of electrons needed to fill their octet

-apex

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13y ago

because they are all unreactive

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Q: What do elements in group 18 have in common?
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Related questions

What is a common name for the elements that make up group 18?

The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.


What does group 18 elements have in common?

all have 8 electrons in the valence shell


Do elements in the same group or elements in the same period have more in common?

GROUPS have more in common than PERIODS. I don't know why, I just know the answer.From, Bryan Hollick


What chemical property is common to the elements in group 18 on the periodic table?

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.


What the common name for the elements that make up group 18 of the periodic table?

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.


What are the elements in group 17?

Group 17 elements are called the halogens. Group 18 elements are called the noble gases.


What elements are in group 17?

Group 17 elements are called the halogens. Group 18 elements are called the noble gases.


What does group 18 become when it is attain in the periodic table?

Group-18 belongs to inert elements. The elements attain stability.


How reactive are the elements in group 18?

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.


What is the name of the group with most unreactive elements?

Noble gases (or group 18 elements)


What group is the noble gas in?

Group-18 belongs to noble gases. The elements of this group are stable.


What are the elements in Group 17-18 called?

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.