Vitamin B12 deficiency can cause weakened bones and may lead to hip fractures. Severe vitamin B12 deficiency can cause neurological problems, such as confusion, dementia, depression, and memory loss. Other symptoms of vitamin B12 deficiency involve the digestive tract.
â¦The answer is Bromine because the question clearly states, at room temperature this halogen is a liquid, and on any periodic table, bromine is a different colour to the other elements showing that it is a liquid or it melts close to room temperature.
There are two elements which are liquid at room temperature and they are Mercury (Hg) and Bromine (Br). Copernicium (Cn) might be liquid at room temperature but chemists are n â¦ ot sure about it.