Limitations of Bohr's model of the atom Animation Play

Line emission spectra Student activity Play

Line emission spectra Whiteboard exercise Play

Little Boy Illustration Play

Macroelements Student activity Play

Magnesium oxide Animation Play

Mass defect Simulation Play

Mass defect Simulation Play

Mass defect Whiteboard exercise Play

Mass defect Whiteboard exercise Play

Mass defect Student activity Play

Mass defect Student activity Play

Mass spectra of the elements Student activity Play

Mass spectrometer Animation Play

Mean bond enthalpy Student activity Play

Mean bond enthalpy Chart Play

Melting and boiling points (2) Student activity Play

Melting and boiling points of hydrocarbons Illustration Play

Melting and boiling points of silicon Animation Play

Melting and boiling points of sodium, magnesium and aluminium Animation Play

Melting of metal Illustration Play

Metallic bonding Student activity Play

Metallic bonding Whiteboard exercise Play

Metallic bonding Animation Play

Metals distribution in the periodic table Animation Play