The noble gases, in group 18 (the far right column), are mostly inert.
the far right column
Elements that have similar chemical properties occupy the same group on the Periodic Table.
They occupy the far right side of the periodic table which is column 18, they are called noble gases and there is 6 types:Helium / He / 2Neon / Ne / 10Argon / Ar / 18Krypton / Kr / 36Xenon / Xe / 54Radon / Rn / 86Column 18, the most far right one: He, Ne, ...etc...., Rn
elements that share the same colum
An elements period is its row in the periodic table.
elements that share the same colum
Periodic table can be classified as:MetalsTransition elementsNon-metalsThey occupy different groups.
Iodine is in the 17th column (towards the right end of the periodic table) and is therefore a halogen. Halogens occupy the 17th column. Metals general occupy the left and center of the periodic table, discluding hydrogen. Iodine, therefore, is highly reactive and likely to become an anion whereas metals generally become cations.
The elements of the 4f series are called lanthanides. They are a group of metallic elements that have similar properties and occupy the f-block of the periodic table.
The elements on the periodic table are typically classified into three main categories: metals, nonmetals, and metalloids. Metals, which are usually conductive and malleable, occupy the left side and center of the table. Nonmetals, found on the right side, are generally poor conductors and have diverse properties. Metalloids, positioned between metals and nonmetals, exhibit characteristics of both categories.
The actinide series is part of the seventh row of the periodic table, which is probably the highest row that contains elements stable enough to be identified.
The third group in the periodic table has the highest number of elements. It includes 32 elements because the f-block is also included in it.