| georg brandt is misspelled. carl scheele is misspelled. Tungsten was discovered by Jose and Fausto Elhuyar. Platinum was discovered by Charles Wood and William Brownrigg in 1741. Chromium was discovered by Louis Nicolas Vauquelin. You only used middle and last name. Polonium and Radium needs to accept Pierre Curie also. Some answers accept last names. Some answers only accept whole names. You need to have some sense of accuracy and uniformity. |