HYDROGEN

HYDROGEN

• A chemical element on the Periodic Table with a chemical symbol H and atomic number 1.
• An atomic weight of 1.00974
• Also the lightest element in the Periodic Table

HISTORY

• Scientists had been producing hydrogen for years before it was recognized as an element. Written records show that Robert Boyle produced hydrogen gas in 1671 while experimenting with iron and acids. Hydrogen was first recognized as a distinct element by Henry Cavendish in 1766.

POSITION ON PERIODIC TABLE

• Hydrogen is the first element of the periodic table. Its atomic number is 1, which indicates it only has one electron in the atom of hydrogen. This electron is present in its first shell. Hydrogen resembles both alkali metals as well as halogens therefore its position is said to be undecided.

WHAT IT IS & USES

• Hydrogen is a important element. Large amounts of hydrogen are combined with nitrogen from the air to produce ammonia through a process called the Haber process. Hydrogen is also added to fats and oils, such as peanut oil, through a process called hydrogenation. Liquid hydrogen is used in the study of superconductors and, when combined with liquid oxygen, makes an excellent rocket fuel.

CONTAINS

• Composed of a single proton and a single electron, hydrogen is the simplest and most abundant element in the universe.

ELECTRON, PROTON AND NEUTRONS

• Electron is a subatomic particle, symbol e− or β−, with a negative elementary electric charge.
• Neutron is a subatomic particle, symbol n or n0, with no net electric charge and a mass slightly larger than a proton.
• Proton is an elementary subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than a neutron.

ISOTOPES

• Hydrogen contains 3 isotopes hydrogen, deterium and tritium.
• Hydrogen has 0 neutrons, deuterium has 1 neutron, and tritium has 2 neutrons.

DID YOU KNOW?

• It is estimated that 90% of the visible universe is composed of hydrogen.
• Hydrogen reacts explosively with the elements Oxygen, Chlorine and Fluorine.

SOURCES USED

• http://faculty.ncc.edu/LinkClick.aspx?fileticket=1iKD9ilORCo%3D&tabid=1819
• http://www.chemicool.com/elements/hydrogen-facts.html
• https://en.m.wikipedia.org/wiki/Hydrogen
• http://education.jlab.org/itselemental/ele001.html
• http://periodic.lanl.gov/1.shtml

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