This element and its compounds are poisonous and they are used for the production of rat poison and insecticides. It is a metalloid. Small amounts of this element are added to germanium to make transistors.
This element is a transition metal used in large amounts by the electrical industry in the form of wire. This metal is the second-best in the electrical conductance. Because this element resists corrosion in air, moisture and seawater, it has been widely used in coins.
This element is classified as a lanthanide and it is the most abundant of the rare-earth elements of the earth’s crust. It is the most reactive of the rare-earth metals and is used as a catalyst to refine petroleum.
Make it easier 🤭
58
Ce
Cerium
68
Eu
Erbium
71
Lu
Lutetium
Correct! 🥳
Incorrect 😞It's...
Cerium
Need a tutor?
Get $25 towards your tutor. Proven, teachery, and great.