The atoms of Group 17 elements must gain one electron in order to become stable.
The Halogens, they have a full valence electron shell.
the group number of the periodic table shows the valence electron. such as :- sodium is placed in group 1 and have valence electron.
Group-17 in the periodic table gains electron most readily. The elements in this group require only one electron to complete its octet.
group #1 on the periodic table is called alkali metals, has one valence electron, and is the most active metal group.
The number of shells in periodic table increase down the group, i.e., vertically.
Neon and helium fall under the same column in the periodic table. Both has stable electron shell.
Stable Elements in the periodic table are located in Group 18 of the periodic table.It is a group of noble gases.Noble gases are considered most stable in nature.
Chlorine's structure makes it very reactive (it is in group VII of the Periodic Table and therefore needs to gain one electron in order to become stable)!
18
Group viii or 0
the group number of the periodic table shows the valence electron. such as :- sodium is placed in group 1 and have valence electron.
noble elements are the stable elements. They are found in group 18 in the periodic table.
The noble gases have a stable electron arrangement and so do not need to react to achieve stability
Group-17 in the periodic table gains electron most readily. The elements in this group require only one electron to complete its octet.
group 17 - the halogens
Alkali metals, Ist group.
1: This is the correct answer for any element in wide form Periodic Table Group 1.
group #1 on the periodic table is called alkali metals, has one valence electron, and is the most active metal group.