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 ...

Science lessons about matter for K-5 students and teachers that align with the Next ... In this edition of Celebrating Chemistry, explore atoms and the periodic table, go on an element scavenger hunt ...

Zirconium is a metal in group IVB of the periodic table with atomic number 40 ... Its atomic radius is 0.160nm and the (+4) ionic radius is 0.080 nm. In the solid state Zirconium has a hexagonal-close ...