how fast do electrons move around the nucleus of an atom?

Question: how fast do electrons move around the nucleus of an atom?
- Keywords:
  atom,
  electrons,
  fast,
  nucleus
Asked by nikhil to Ciara, Elaine, Golnaz, Gonzalo, Yannis, Yvonne on 8 Nov 2017.
- Ciara O'Donovan answered on 8 Nov 2017:
  
  About 2,200 kilometers per second…
- Gonzalo Delgado-Pando answered on 8 Nov 2017:
  
  Way too fast!
- Ioannis Zabetakis answered on 8 Nov 2017:
  
  pretty fast!
  
  A calculation shows that the electron is traveling at about 2,200 kilometers per second. That’s less than 1% of the speed of light, but it’s fast enough to get it around the Earth in just over 18 seconds.
  
  much faster than Bolt!

Question: how fast do electrons move around the nucleus of an atom?