Basically, electron pairs in a molecule want to adopt a geometry to maximize their distance apart, since like charges repel each other. For example, methane (CH4) adopts a tetrahedral arrangement - you can think of this as the carbon atom at the center of a pyramid and the 4 hydrogens at the four vertices. Bonds angles are 109.5 degrees. This is a case where all electrons are bonding electrons; they form the 4 bonds between carbon and hydrogen. Lone electron pairs also affect the geometry. For instance, water (H2O) has two lone electrons pairs; it adopts a bent/angular geometry.
Spotify is a music, podcast, and video streaming service, officially launched on 7 October 2008. It is developed by startup Spotify AB in Stockholm, Sweden. It provides digital rights management-protected content from record labels and media companies.
How Spotify Works. When I downloaded Spotify to my MacBook, it didnât take even ten minutes before I proclaimed it âthe greatest thing ever.â That may be bold, but at least you get an idea of its impact. At its core, Spotify is a music player, similar to iTunes. It lets you play your music, create playlists, etc. But unlike iTunes, Spotify allows you to âaddâ music to your library with the click of a button, and at absolutely no charge. You simply search for the artist or track or album, and âstarâ it, to add it to your library.