IYPT 2019 Elements 072: Hafnium: Nuclear submarines and microchips

Element 72 in our International Year of the Periodic Table series is hafnium. Hafnium is used in reactors in nuclear submarines and also helps make microchips smaller and faster. Hafnium is a neutron absorber and is used in nuclear reactor control rods in nuclear submarines. Its absorption cross-section for absorbing neutrons is about 600 times […]