Chemistry & Physics. Chemistry 403: Trends in the Periodic Table . Season 1 Episode 403 | 26m 9s. Students learn to describe the pattern in atomic number, atomic mass and atomic radius.

It is shown here that these radii account quantitatively for the bond lengths of many hydrides when added to the atomic and Golden ratio based ionic radii of many other atoms.

Sodium is an alkali metal in group IA of the periodic table with atomic number 11, an atomic weight of 22.99, and a density of 0.97 Mg/m 3. Its melting point is 97.8 C, and it boils at 892 C. The ...

Lithium is an alkali metal in group IA of the periodic table with atomic number 3, an atomic weight of 6.939, and a density of 0.53 Mg/m 3. Its melting point is 180.5 C, and it boils at 1330 C. The ...

CBSE has released syllabus of Class 11 for the academic session 2016‒2017. The key contents of the syllabus issued by CBSE for Class 11th Chemistry are: ...