what elements on the periodic table are halogens?
477395
Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
1186890
Bromine is a chemical element. It's symbol on the Periodic Table is Br. ... A Bromide is a compound that includes bromine, and some other element.
378309
Halogen Replacement Fluorine is the most reactive halogen, while iodine is the least. Since chlorine is above bromine, it is more reactive than bromine and can replace it in a halogen replacement reaction.
182537
Answer and Explanation: Any element in the halogen group will have seven valence electrons. These elements include fluorine, chlorine, bromine, iodine, and astatine.
615908
Iodine is classified as a halogen — a subset of very chemically reactive elements (Group 17 on the periodic table) that exist in the environment as compounds rather than as pure elements. The other halogens include fluorine (F), chlorine (Cl), bromine (Br) and astatine (At).
44527
Bromine is the third halogen, being a nonmetal in group 17 of the periodic table.
1107677
Halogens are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. This reactivity is due to high electronegativity and high effective nuclear charge. Halogens can gain an electron by reacting with atoms of other elements. Fluorine is one of the most reactive elements.
1340039
An element's chemical properties and many of its physical properties are determined by its valence electrons. Halogens can be solids, liquids, or gases at standard conditions. Whose element symbols are the closes to what chemists use today?
449737
['High reactive metals.', 'Not found freely in nature.', 'Stored in a mineral oil solution.', 'Low melting points.', 'Low densities (lower than other metals)', 'Low electronegativity.', 'Low ionization energy.', 'React easily with halogens.']
690325
Halogens share many similar properties including: They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.
618606
Bromine. Bromine is a chemical element with symbol Br and atomic number 35.
1257799
There are nine basic groups of elements shown in the periodic table. They are the alkali metals, alkaline earth metals, transition metals, other metals, metalloids, non-metals, halogens, noble gases and rare earth elements.
207597
The halogen atoms carry seven valence electrons in their outermost electron shell. These seven outermost electrons are in two different kinds of orbitals, designated s (with two electrons) and p (with five).
471016
The halogen elements have seven valence electrons in their outermost electron shell.
587576
Elements in group seven have a number of similar properties, most importantly they have low melting and boiling points. This is of course a typical property of non-metals. From the lowest boiling and melting point to the highest, the group in order is fluorine, chlorine, bromine, iodine and astatine.
1154685
Near room temperature, the halogens span all of the physical states: Fluorine and chlorine are gases, bromine is a liquid, and iodine is a solid. All of the elements are colored, with the color becoming more intense moving down the group. Fluorine gas is pale yellow, and chlorine gas is a yellowish green.
890741
What Makes Them Similar? When you look at our descriptions of the elements fluorine and chlorine, you will see that they both have seven electrons in their outer shell. That seven-electron trait applies to all of the halogens. They are all just one electron shy of having full shells.