Atomic Number 84 (Noun)
Meaning
A radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor.
Classification
Nouns denoting substances.
Examples
- Polonium, also known as atomic number 84, has 33 known isotopes and is extremely toxic.
- The discovery of atomic number 84 by French physicist Marie Curie led to further research on radioactive elements.
- Atomic number 84 has been used in nuclear batteries to power space exploration satellites and other devices.
- The radiation given off by atomic number 84 can be highly hazardous to human health if ingested or inhaled.
- Scientists also called atomic number 84 the "richest of radioactive substances" when it was discovered in 1898.