The Periodic Table is designed so elements in the vertical columns (groups) have the most similarities in chemical and physical properties. So, Iodine is most similar to the other non-metals in the Halogen family, such as Fluorine, Chlorine, Bromine, and Astatine.
In general, elements are most similar to their immediate neighbors in a column of the periodic table. This means that iodine is most like bromine and/or astatine. Chemically speaking, it is bromine that is most like iodine. Iodine is a halogen (the Group 17 elements), and it lacks one electron from having a full outer shell like all elements of its group. Under that heading, fluorine, chlorine, bromine or astatine might be cited as similar, and this would be generally correct. But though the halogens in general are pretty darn reactive, iodine is the least reactive of them. And it is bromine that is closest in electronegativity (which is kind of like "reactivity") to iodine, so it's chemically most similar. Links to related Wikipedia posts are provided and can be found below.
any of the group 7 halogens are similar in properties but increase in reaction speed as one descends down the family
Astatine is probably the closest
Fluorine.
Iodine is a chemical element with the symbol I and atomic number of 53. It is not considered a mineral sulfide.
Astatine is similar to the halogen family
Column VII A is an obsolete name; the official name of IUPAC is Group 17 (halogens group).
Iodine, though astatine is somewhat less reactive.
The same? No. Similar? yes, Flourine, Bromine, Iodine. See "HALOGENS"
Strontium and iodine are very different chemical elements.
Iodine and chlorine have very similar chemical properties because they are in the same chemical family (go see a periodic table). They are both halogens (so they have the same valence electrons).
Any other halides - fluorine, chlorine, iodine or astatine
Chlorine ,Bromine and Iodine have same chemical properties as Fluorine.
Bromine and iodine, which are in the same group as chlorine, have similar type of chemical characteristics.
Iodine is a chemical element; not a mixture, not a compound.
Flourine belongs to a class of elements called Halogens, which are similar in their chemical and physical properties. The other elements of this group are Chlorine, Bromine, Iodine, Astatine and Ununseptium. Astatine, however, is not considered to be a true halogen since it is radioactive in nature and Ununseptium is a synthetic element.
Vinegar and iodine are not similar substances. Vinegar is a liquid consisting mainly of acetic acid and water, commonly used in cooking and household cleaning. Iodine is a chemical element (I) found in the periodic table, typically used in disinfectants, medical treatments, and as a supplement for iodine deficiency. They have different chemical compositions and uses.
all group 17 atoms are similar, so Bromine and Iodine would also be similar. Astitaine is much less well known but would also be somewhat similar as well.
I donΒ΄t know
That is the correct spelling of "iodine" (a chemical element, and an antiseptic tincture).