If you mean elements, there are six members of the halogen family; fluorine, chlorine, bromine, iodine, astatine, and element 117. Element 117 has not yet been officially named. It is currently called ununseptium, Uus, which means 117.
Fluorine (F), Chlorine (Cl), Iodine (I), Bromine (Br), Astatine (At)
F, Cl, Br, I, At so 5
six
There are 53 Elements in the Periodic Table.
It's 118 chemical elements in the periodic table.
There are 18 groups in the periodic table of elements.
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
Currently the Periodic Table lists 118 elements.
In the Periodic table of Elements There are 118 Elements 96 are metals The rest are non-metals Group 7= Halogens Group 8/0= Noble gases Going down group 1 and 2, elements become more reactive
There are 53 Elements in the Periodic Table.
there are precisely 118 elements on the periodic table.
The Periodic Table has 118 elements and counting...
It's 118 chemical elements in the periodic table.
The periodic table of elements does not contain laws, only elements.
There are 118 elements on the periodic table.
118 chemical elements are now in the periodic table.
There are 18 groups in the periodic table of elements.
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
There are 117 elements on the periodic table, however, there is one blank spot that lies on the periodic table of elements, it has the atomic number of 117. If it were discovered, there would be 118 elements on the periodic table of elements.
All groups bond with at least one halogen, with the notable exception of the noble gases where some of the group do not. Group 1 elements (the alkali metals) are all +1, and, because the halogens are -1, will bond with them in a one-to-one ratio. Those bonds are ionic bonds. Group 2 elements (the alkali earth metals) will bond with halogens, and because group 2 elements are all +2, they bond in a one-to-two ratio creating ionic bonds. All of the transition metals form compounds wit th halogens, and because their valency varies they will bond in varying ratios. The p block elements all bond mainly with covalent bonds but there are many exceptions. the lanthanides and actinides form ionic compounds typically with a a ratio of 1:3