Element 76 in our International Year of the Periodic Table series is osmium. Osmium is the densest element in the periodic table and is used in fountain pens and microscopy.
Element 75 in our International Year of the Periodic Table series is rhenium. Rhenium is used in superalloys in jet engine parts and is also used in the process for making lead-free petrol.
Element 74 in our International Year of the Periodic Table series is tungsten. Tungsten is used in tools and armour-piercing bullets and has also been used to make counterfeit gold.
Element 73 in our International Year of the Periodic Table series is tantalum. Tantalum is used in electrical components in phones and computers; it’s also used in dental and surgical instruments and implants.
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.
Element 71 in our International Year of the Periodic Table series is lutetium. Lutetium can be used to determine the age of meteorites and is also used as a catalyst and in some cancer treatments.