Elementární vodík (H2) má široké praktické využití: zdroj energie, redukční činidlo v chemické syntéze nebo metalurgii a také jako náplň meteorologických a pouťových balónků a do 30. let 20. století i vzducholodí. Fakta o vodíku. AUTA NA VODÍKOVÝ POHON – NEZkreslená věda VII. Příprava a důkaz vodíku. Jak se vyrábí vodík. Hydrogen.
Hydrogen is a chemical element at the start of the periodic table. It has the symbol H and atomic number 1. It also has a standard atomic weight of 1.008. This makes it the lightest element in the periodic table. In standard conditions, hydrogen is a diatomic gas with the formula H2, or dihydrogen.[8] In this state, hydrogen is also called hydrogen gas or molecular hydrogen. Hydrogen has no color, smell, or taste.[9] Hydrogen is not toxic and is very combustible.[8] Hydrogen is usually nonmetallic and can form covalent bonds with most nonmetals.
Hydrogen gas was first made artificially in the 1700s. When hydrogen is by itself, it will normally bind with itself to make dihydrogen (H2). At normal temperature and pressure, hydrogen gas (H2) has no color, smell, or taste.[13] It is also not poisonous. Molecular hydrogen is flammable and reacts with oxygen: 2 H2(g) + O2(g) → 2 H2O(l) + 572 kJ (286 kJ/mol) At temperatures higher than 500 °C, hydrogen suddenly burns in air. Hindenburg Disaster Of 1937 □ Vodík. Coogle. Crossword Puzzle Vodík.