Tungsten is a metal in group VIB of the periodic table with atomic number 74, an atomic weight of 183.85, and a density of 19.3 Mg/m 3. Its melting point is 3410 C, and it boils at 5930 C. In the ...

So, today we're going to look at the periodic table. That thing that you see behind ... For example, lithium (Li), sodium (Na) and potassium (K) all have the same kind of reaction with water.

The periodic table - AQA Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how ...