Vērtējums:
Publicēts: 22.11.2002.
Valoda: Angļu
Līmenis: Vidusskolas
Literatūras saraksts: Nav
Atsauces: Nav
  • Eseja 'What you need to know about HYDROGEN.', 1.
Darba fragmentsAizvērt

Hydrogen is a tasteless, odourless, colourless gas and is one of the most important chemical elements. The hydrogen atom is simple and the smallest atom. Hydrogen consists of 1 proton, which has a positive charge, and 1 electron, which has a negative charge as well. Hydrogen has a chemical symbol H. Its atomic number is 1. Its atomic weight is 1.0079. The term hydrogen comes from two Greek words meaning water-former. Hydrogen gas and oxygen gas combine to form water.
Occurrence:
Hydrogen is chiefly combined with oxygen in form of water.
Hydrogen is the most abundant element in the univer…

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