The halogens have 7 electrons in their outer shell desparate to gain the 1 electron to make a full shell of 8 electrons.
Group 17 elements, also known as the halogens, have seven electrons in their outer energy level. This allows them to easily gain one electron to achieve a stable octet configuration.
The group that needs one more electron to fill its outer energy level is the group of elements located on the right side of the periodic table known as Group 17, or the Halogens. These elements have seven valence electrons and are just one electron short of a full outer energy level.
There are 7 electrons! Hehe
Uranium has 2 electrons on its outer energy level.
Nitrogen has 5 electrons in its outer shell, and Bromine has 7 electrons in its outer shell.
7 electrons are on the outer (valence) shells of all halogens
Group 17 elements, also known as the halogens, have seven electrons in their outer energy level. This allows them to easily gain one electron to achieve a stable octet configuration.
The group that needs one more electron to fill its outer energy level is the group of elements located on the right side of the periodic table known as Group 17, or the Halogens. These elements have seven valence electrons and are just one electron short of a full outer energy level.
There are 7 electrons! Hehe
Uranium has 2 electrons on its outer energy level.
Atoms of elements in Group 7A of the periodic table, also known as Group 17 or the halogens, have 7 electrons in their outer energy level. Examples of elements in this group include fluorine, chlorine, bromine, iodine, and astatine.
Nitrogen has 5 electrons in its outer shell, and Bromine has 7 electrons in its outer shell.
The halogen that will have its outer energy level filled with 2 electrons is astatine (At). Halogens typically have seven valence electrons, but astatine is a heavier element that can form stable compounds where it can exhibit a +1 oxidation state, effectively allowing it to achieve a filled outer shell in certain contexts. However, it's important to note that in its elemental form, astatine, like other halogens, primarily exists with seven valence electrons.
Vanadium has 5 electrons in its outer energy level.
halogens (group 17 elements)
What causes these to be so reactive is the amount of electrons in the outer most level. Each level after the first (which has 2 if full) if filled will have 8 electrons. Halogens have less than that causing it to be reactive to other elements. (i don't know how many electrons it has in the outer level) The reason why it is reactive is (depending on how many electrons it has in the outer leve) because it is either trying to gain or lose those extra electrons. What causes these to be so reactive is the amount of electrons in the outer most level. Each level after the first (which has 2 if full) if filled will have 8 electrons. Halogens have less than that causing it to be reactive to other elements. (i don't know how many electrons it has in the outer level) The reason why it is reactive is (depending on how many electrons it has in the outer leve) because it is either trying to gain or lose those extra electrons.
halogens are coloured due to absorption of radiation in visible rangewhich results in the excitation of outer electrons to higher energy level. hence,HALOGEN show colour