chlorine Cl
Elements similar to chlorine will be located in the same group(17).
Because iodine is nonpolar, a nonpolar substance like ethanol would dissolve it. Iodine is insoluble in polar substances like water.
In a chemical change chemical properties often change (like a substance's melting point or it's reactivity). In a physical change the materials have the same properties (a physical change would be like crushing rocks into sand). You can take wood, grind it into saw dust, but it is still wood. But if you burn it, the wood goes through a chemical change with the oxygen in the air and most of it is broken down into a gas (smoke) and the solid of which is left behind has a very different flammability property. (Suit, it doesn't burn.)
Barium loses electrons to obtain a stable octet, like any other metal.
Iodine gas is usually described as having an "irritating" odor.
boron
Any liquid that has strong staining properties, like iodine.
Fluorine.
bromine,chlorine and iodine do not have the same physical properties like chlorine is a greenish yellow gas,bromine is brown and iodine is purple liquid so generally they do not have the same physical properties.
Florine and iodine fall under a class of compounds called halogens. There are currently 5 known halogens to man :-FlorineChlorineBromineIodine,andAstatine.They exhibit similar properties because they have a deficiency of 1 electron in its outermost shell making them highly electronegative. During reactions involving metals they have the tendency to bleach metals i.e. bond themselves with metals via ionic bonds which becomes covalent in higher periods. Iodine is highly covalent because it can react with other halogens forming compunds like IF or IF7.
Physical properties are things like size and shape. Chemical properties are things like does it combust or does it react with anything.
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.
Smooth is what it feels like; square and tan are what it looks like - those would all be physical properties of the substance.
Elements similar to chlorine will be located in the same group(17).
Physical properties like lustre cannot be determined. Chemical properties like enthalpy values is hard to determine.
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.
The production of light can be a physical or chemical property. Physical properties would include phenomena like luminescence or fluorescence, where certain materials are capable of emitting light without undergoing chemical reactions. Chemical properties would include processes like combustion or bioluminescence, where the production of light is a result of chemical reactions taking place.