The halogens have 7 electrons in their outer shell desparate to gain the 1 electron to make a full shell of 8 electrons.
There are 7 electrons! Hehe
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.
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
There are 7 electrons! Hehe
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.
Uranium has 2 electrons on its outer energy level.
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.
Nitrogen has 5 electrons in its outer shell, and Bromine has 7 electrons in its outer shell.
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.
Vanadium has 5 electrons in its outer energy level.
halogens (group 17 elements)
Iodine has 7 electrons in its outer energy level.
There are 8 electrons in the outer energy level of xenon. Xenon belongs to the noble gas group on the periodic table, which have a full outer energy level with 8 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. 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.