Mostly they are highly electronegative and they only need one electron to fill their outer shell in a noble gas octet configuration.
Because they only need 1 electron to get the inert/noble gas structure and thus be extremely stable.
Group 8A, the noble gases because they have high electron affinity.
In the usual form of the periodic table in current high school textbooks, the halogens are in column 17. In older books, this column was often designated as VII.
because they need only one element to make noble gas structure.
Halides are the most active nonmetals on the periodic table because it has high electronegativity. Meaning it is more likely to attract an electron towards itself to react.
Because they only need 1 electron to get the inert/noble gas structure and thus be extremely stable.
C. They gain electrons easily because they are just... that's enough for you to get if right
Group 8A, the noble gases because they have high electron affinity.
halogens have high electron affinity, form ions easily, hence are involved in ionic bonding with suitable cations.
In the usual form of the periodic table in current high school textbooks, the halogens are in column 17. In older books, this column was often designated as VII.
because they need only one element to make noble gas structure.
Halides are the most active nonmetals on the periodic table because it has high electronegativity. Meaning it is more likely to attract an electron towards itself to react.
In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.
In their outer electron shell, halogens have 7 valence electrons, one less than the number needed for a full shell. Therefore, it is much, much easier for the halogen to gain an electron in bonding than for it to lose 7 - the ionization energy (energy required to remove an electron from an atom) is quite high.
Group 8 (noble gases) have the highest first ionization energy because they are already stable and don't want to lose any electrons. Ignoring the noble gases, however, group 7 halogens (F, Cl, Br, I, etc.) have the highest first ionization energy. That's because these elements have seven valence electrons, and they don't want to give up any electrons - they want another one!
include the halogens are nonmetals
Halogens have many properties but the most important is the high reactivity and high electonegativity.let example of flourine it is so much high reactive that even if it react in dark still it will creat an explosion.