It is the element first created in 2009 Ununseptium, (Uus), with the atomic number of 117 and a standard atomic weight thought to be 294. The name, which simply refers to its atomic number, is a temporary one as at the time of posting this reply (end 2015)..
Potassium is a metal element. It is not a halogen. Example for halogen is Chlorine.
Gold is not a halogen it is a transition metal
Bromine is the only liquid halogen
Astatine is the 6th period halogen.
Halogen light bulbs are more efficient on energy and last twice as long as a regular light bulb thus saving you money. After researching several websites on energy it is stated that a regular light bulb costs $9.49 for 1460 hours of use whereas a halogen light for the same amount of hours costs $8.76.
Any where from 3000-6000 hours :)
Any where from 3000-6000 hours :)
buy another one but remember they never last for a complete year!
The halogen with the least-negative electron affinity is astatine. Electron affinity and electronegativities decreases down a group. Since astatine is the last halogen located in Group 17 as you move down the column from fluorine, it has the least negative electron affinity.
Potassium is a metal element. It is not a halogen. Example for halogen is Chlorine.
Any element, other than a halogen is - by definition - not a halogen and so it does not have a halogen and that is less than one halogen.
Yes, I (iodine) is a halogen.
This halogen is astatine.
No, Bromine is a Halogen
Halogen.
Halogen is a gas, so your question doesn't make much sense. If you're asking about a halogen (light) bulb, then the answer is: mainly halogen.
Halogen gas is in a Tungsten-Halogen Light Bulb.