What is group 17 on the periodic table called?
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).
What are the highly reactive elements in group 17 called?
Halogens (fluorine, chlorine, bromine, iodine, astatine) are nonmetal elements that are highly electronegative and reactive.
Does group 17 have high reactivity?
Halogens are nonmetals in group 17 (or VII) of the periodic table. Due to their high effective nuclear charge, halogens are highly electronegative. Therefore, they are highly reactive and can gain an electron through reaction with other elements.
Why does reactivity increase up group 17?
Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups.
Why does reactivity decrease down group 17?
The chemical reactivity of group 17 elements decreases down the group. So down the group there is an increase in the atomic radius and hence the effective nuclear force decrease as the atomic radius increases and this leads to the decreased chemical reactivity down the group.
Why does reactivity decrease in group 17?
Does reactivity decrease down group 17?
Why does reactivity decrease down group 16?
The tendency to catenate, the strength of single bonds, and the reactivity all decrease moving down the group. Because the electronegativity of the chalcogens decreases down the group, so does their tendency to acquire two electrons to form compounds in the −2 oxidation state.
Why are groups 1 and 17 the most reactive?
Elements in group 17 include fluorine and chlorine. Group 1 of the periodic table includes hydrogen and the alkali metals. Because they have just one valence electron, group 1 elements are very reactive.
What do group 17 elements form?
Halogens (group 17 elements) react with most metals to form an ionic metal halide, and the reactions are more vigorous with fluorine and least vigorous with iodine. The halogens also react with water. Ofcourse the reaction with fluorine is vigorous, while the reaction with other halogens is much less so…