Arsenic Thallium is the other.
Mercury is an element that is also a liquid. It is in the Periodic Table and is #80.
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
Sodium is part of the periodic table group of Alkali metals with only one valence electron. They are very, very reactive, but it is not corrosive.
seaborgium, the chemical element of atomic number 106, a very unstable element made by high-energy atomic collisions.
Hydrogen is found at the very top left of the periodic table. It is the first element on the periodic table and it is shown with the atomic symbol H.
Usually on the very top of every element.
Usually on the very top of every element.
Very different. Each element is unique.
It is at the very top left column. Hydrogen is the first element.
Very probable ununoctium is similar to radon.
Arsenic Thallium is the other.
H on the periodic table represents Hydrogen. This is the lightest element but it is very essential to life because it is a major component to water (H2O).
If you think to the atomic radius (empirical) this chemical element is very probable radium.
Magnesium is an Alkaline Earth element. It is a metal, and is very reactive.
This is a noble gas (group 18).
It's Chlorine because they are in the same group in the periodic table.