Because they require one electron to complete their octet
There are some numbers. Every element shows -1 number.
-1 only for F Other elements could have -1 to +7 depending on the compound
Group 17 elements are also known as halogens. Atomic halogens have 0 as their oxidation number. They tend to accept an electron from another element to become stable: the new oxidation state would be -1.
Potassium and Lithium
The halogens (group 17) have an oxidation number of -1, though the halogens below fluorine can have other oxidation numbers as well. Hydrogen can also have an oxidation number of -1 when it forms hydrides.
-1.
There are some numbers. Every element shows -1 number.
-1 only for F Other elements could have -1 to +7 depending on the compound
-1 is most common, though oxidation number up to +7 are known (except for fluorine)
Group 17 elements are also known as halogens. Atomic halogens have 0 as their oxidation number. They tend to accept an electron from another element to become stable: the new oxidation state would be -1.
Potassium and Lithium
The halogens (group 17) have an oxidation number of -1, though the halogens below fluorine can have other oxidation numbers as well. Hydrogen can also have an oxidation number of -1 when it forms hydrides.
The group I-A and III-A group have both positive and negative oxidation state . In I-A group H (hydrogen) has negative oxidation state and positive oxidation state.In III-A group B(boron) performs both positive and negative oxidation states. RGUKT IIIT NUZVID: N091528
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group 17 elements are called the halogens. Group 18 elements are called the noble gases.
Group number 17 on the periodic table of the Elements are known as the Halogens; Group 18 are the Noble Gases
The elements in group 17 are collectively called the halogens.