Hydrogen

Periodic Table Definitions and Electron Configurations Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Hassium Bohrium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Ununquadium Ununpentium Ununhexium Ununseptium Ununoctium Electron Configuration

Hydrogen

Name: Hydrogen

Symbol: H

Atomic Number: 1

Atomic Mass: 1.00794

Group: 1

Period: 1

Electron Configuration: 1

Nonmetal

Gas at STP

Found as a diatomic molecule H₂

Write Your Questions Below

how many protons neutrons and electrons does the isotope 2/1H have

January 10, 2012

Hi - when ever we are dealing with isotopes, the only thing that is changing is the number of neutrons which causes a change in the mass. So for your questions, H always has one proton and as long as it is not an ion you also have one electron. SO the number of neutrons is what is changing.

January 10, 2012 - Replied By Expert