Atomic mass of an element Student activity Play

Atomic mass of an element Animation Play

Atomic mass of an element Whiteboard exercise Play

Atomic masses in the periodic table Student activity Play

Atomic number Animation Play

Atomic number Whiteboard exercise Play

Atomic number Student activity Play

Atomic number and mass number Student activity Play

Atomic numbers and mass numbers of the elements Animation Play

Atomic radii Animation Play

Atomic radii Simulation Play

Atomic radii Whiteboard exercise Play

Atomic radii Student activity Play

Atomic radii of alkali metals Animation Play

Atomic radii of alkali metals Slideshow Play

Atomic radii of the s-block elements Whiteboard exercise Play

Atomic radii of the s-block elements Student activity Play

Atomic radius Illustration Play

Atomic radius Whiteboard exercise Play

Atomic radius Student activity Play

Atomic spectra Class activity Play

Atomic spectra Whiteboard presentation Play

Atomic spectra of elements Whiteboard exercise Play

Atomic spectra of elements Student activity Play

Atomic spectrum of hydrogen Whiteboard exercise Play