Argon is one of the inert or "noble" gasses which do not participate in any chemical reactions. Others include helium, neon, xenon, krypton, and radon.
Aside from radon, which is radioactive, all the other inert gasses behave pretty much the same way. They do not combine chemically with any other elements. (There are a couple of cases of radon "combining" in a complex molecule at very low temperatures, but this is more a case of the radon atom being trapped as the rest of the compound freezes around it.)
Lanthanides have properties similar to Cerium
Fluorine, at the top of the periodic table column that includes bromine.
Silicon, carbon's only neighbor within its periodic table column 14.
The sixth period transition element with properties mist similar to Ni is platinum with symbol Pt, because both these elements are in Column 10 of a wide form periodic table.
I am guessing Choline was a typo, if you meant chlorine, then all of the halogens have similar chemical properties
Lanthanides have properties similar to Cerium
Buttholes
Elements present within a same group normally have similar properties
In the same column.
is it at every tenth element
lanthanum and other lanthanides
Fluorine, at the top of the periodic table column that includes bromine.
By looking down its column called a group
Groups on the periodic table with similar properties are called families.
The element in a given vertical column (or groups) have the same number of valence electrons and hence have similar properties.
Beryllium (Be). This is because on the periodic table Be is located in the same group (column) as Calcium and is the highest element in that column. Elements of the same group have similar properties and their masses decrease the higher they are in the group.
The two elements that have the most similar chemical properties to arsenic are Phosphorus (P) and Antimony (Sb).