Hydrogen has three isotopes namely protium, deuterium and tritium. Cavendish called this gas "Inflammable gas". It was "hydrogen", meaning "water producer" (Hydro = water, He also proved that when hydrogen is burnt in air, water is the only product obtained. In 1766, Henry Cavendish, an English chemist, discovered hydrogen, by treating iron with dilute sulphuric acid. Hydrogen combines with non-metals like carbon, silicon, etc. Example: NaH (Sodium hydride) Nature of compounds Like halogens, hydrogen may also show 1 valency by accepting an electron. Like halogens, hydrogen is diatomic (H 2 ) whereas metals are monoatomic. Properties of Hydrogen that Resemble Halogens Non-metallic character Electronegativity Values for Carbon, Hydrogen, Nitrogen & Oxygen Using the information in Table 1, the electronegativity difference (EN) for a C-C bond can be determined in a few steps. Hydrogen is a good reducing agent like other alkali metals. Hydrogen, like the alkali metals, combines readily with non-metals like halogens, oxygen, sulphur, etc. It readily loses its electron to form a positive ion like other alkali metals. Hydrogen generally shows + 1 valency like alkali metals. Hydrogen atom has one electron in its valence shell like alkali metals. Properties of Hydrogen that Resemble Alkali Metals Electronic configuration Isotopes are atoms of the same element having the same atomic number, but different mass number. Hydrogen resembles both alkali metals (group I A) as well as halogens (group VII A) therefore its position is said to be anomalous. This electron is present in its first shell. Its atomic number is 1, which indicates the presence of only one electron in the atom of hydrogen. Feel free to share them with anyone else who can use them.Hydrogen is the first element of the periodic table. That’s it for the periodic table mnemonics. These are the only ones of which the news has come to Harvard,Īnd there may be many others but they haven’t been discovered. There’s sulfur, californium and fermium, berkelium,Īnd also mendelevium, einsteinium, nobelium,Īnd argon, krypton, neon, radon, xenon, zinc and rhodium,Īnd chlorine, carbon, cobalt, copper, tungsten, tin and sodium. Palladium, promethium, potassium, polonium,Īnd tantalum, technetium, titanium, tellurium,Īnd cadmium and calcium and chromium and curium. ![]() There’s holmium and helium and hafnium and erbium,Īnd phosphorus and francium and fluorine and terbium,Īnd manganese and mercury, molybdenum, magnesium,ĭysprosium and scandium and cerium and cesium.Īnd lead, praseodymium and platinum, plutonium, There’s strontium and silicon and silver and samarium,Īnd bismuth, bromine, lithium, beryllium, and barium. ![]() There’s yttrium, ytterbium, actinium, rubidium, There’s antimony, arsenic, aluminum, selenium,Īnd hydrogen and oxygen and nitrogen and rhenium,Īnd nickel, neodymium, neptunium, germanium,Īnd lanthanum and osmium and astatine and radium,Īnd gold, protactinium and indium and gallium,Īnd iodine and thorium and thulium and thallium. I’ve included lyrics below if you’d like to print them. ![]() Now, if you want your teen to have help learning all of the elements, this fun video of The Element Song by Tom Lehrer is your best bet. Naughty Magpies Always Sing Perfect Songs Clawing Ants And this phrase will help your teen remember the abbreviations:
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