Fluorine
The halogen in the 2nd period is fluorine (F).
An example of a covalent compound formed between an element in period 2 and a halogen is hydrogen fluoride (HF). This compound is formed by the sharing of electrons between the hydrogen atom (period 1) and the fluorine atom (halogen).
The halogen in period 6 is astatine. It is a radioactive element and is the rarest naturally occurring halogen on Earth.
Chlorine is the halogen that is in the same period as potassium. They are both in period 3 of the periodic table.
It is bromine. Edit: NO. It is NOT bromine. The third period halogen is chlorine (Cl). Bromine happens to be in period 4.
The halogen in the 2nd period is fluorine (F).
An example of a covalent compound formed between an element in period 2 and a halogen is hydrogen fluoride (HF). This compound is formed by the sharing of electrons between the hydrogen atom (period 1) and the fluorine atom (halogen).
Iodine, element number 53 is the halogen (Group 17) element in period 5.
The halogen in period 6 is astatine. It is a radioactive element and is the rarest naturally occurring halogen on Earth.
Chlorine is the halogen that is in the same period as potassium. They are both in period 3 of the periodic table.
The periods are the rows, and the groups are the columns, so Fluorine, F, is in Period 2 (and Group 7).
If you have a periodic table of the elements available, look at the second column from the right. Those elements are often referred to as "halogens". The "rows" in the periodic table are often referred to as the "periods". So the halogen from the third period would be "CL", or chlorine. Glad to help with your homework.
It is bromine. Edit: NO. It is NOT bromine. The third period halogen is chlorine (Cl). Bromine happens to be in period 4.
Fluorine is in the halogen family and in the second period of the periodic table.
Bromine is a liquid nonmetal halogen in the fourth period of the periodic table. It is the only halogen that exists in a liquid state at room temperature.
The element symbol for the halogen in the fifth period is Iodine, with the chemical symbol I.
Chlorine is the element in the halogen family located in period 3 of the periodic table.