Essays Tagged: "Hydrogen atom"

What you need to know about HYDROGEN.

Hydrogen is a tasteless, odourless, colourless gas and is one of the most important chemical element ... 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 cha ... ll. 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 for ...

(2 pages) 60 1 3.3 Nov/2002

Subjects: Science Essays > Chemistry

Describing how Hydrogen Bonding is done.

This hydrogen bonding is way different from other uses from the word "bond", since it is a force of attra ... is way different from other uses from the word "bond", since it is a force of attraction between a hydrogen atom in one molecule and a small atom of high electronegativity in another molecule. This m ... is an intermolecular force, not an intramolecular force as in the common use of the word "bond.When hydrogen atoms are joined in a polar covalent bond with a small atom of high electronegativity like ...

(1 pages) 31 0 3.0 May/2003

Subjects: Science Essays > Chemistry

Atomic structure

"-Jaime - Internet Chemistry JokesThe atom above, made up of one proton and one electron, is called hydrogen (the abbreviation for hydrogen is H). The proton and electron stay together because just li ... he earth's rotation keeps it from plunging into the sun. Taking this into consideration, an atom of hydrogen would look like this:A Hydrogen AtomKeep in mind that atoms are extremely small. One hydrog ...

(5 pages) 36 0 4.5 May/2005

Subjects: Science Essays > Chemistry

Hydrogen Bonding Essay.

HYDROGEN BONDING:Hydrogen bonding is a bonding type consisting of dipole and dispersion forces. A hy ... type consisting of dipole and dispersion forces. A hydrogen bond is the attractive force between a hydrogen atom attached to a molecule and an atom of a different molecule.According to the Pauling sc ... d fluorine. These are also called heteroatoms. The heteroatoms have a partial negative charge while hydrogen has a partial positive charge.Hydrogen bonding is generally stronger than most bonds bar co ...

(3 pages) 31 1 4.0 Sep/2005

Subjects: Science Essays > Chemistry

The Importance of Water to Life on Earth.

osystem and how important it is to us today.Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom bears a slight electronegative charge while hydrogen possesses a mor ... , the water molecules are drawn together. When an oxygen atom is linked to a neighboring molecule's hydrogen atom, a bond called a hydrogen bond is formed. In an ice crystal the hydrogen bonds govern ...

(3 pages) 35 0 3.0 Jan/2006

Subjects: Humanities Essays > Health & Medicine

Chemestry Notes: - development of periodic table, organization of elements, atomic structure, and modern periodic table, isotopes, summary of chapter

omic Mass: the mass of an isotope of an element measured in units formerly based on the mass of one hydrogen atom taken as a unit or on 1/16 the mass of one oxygen atom, but after 1961 based on 1/12 t ... ization of elementsIt was realized that each element had a characteristic mass in the 18th century. Hydrogen was given the atomic mass of 1 because it was the element with the lowest mass, all other e ...

(3 pages) 18 0 0.0 Oct/2006

Subjects: Science Essays > Chemistry

Medical Imaging - The Physics of Light Microscopes and Magnetic Resonance (MRI) units

adio frequency to do its job.MRI relies on tissue density and the unique 'magnetic' properties of a hydrogen atom.The "Magnetic" in MRIProbably the most crucial MRI component is the solid, but stable ... in an MRI scan requires a radio frequency (RF) signal.Inside the human body, there are billions of hydrogen atoms. These hydrogen atoms spin on their axis randomly when not in contact with strong mag ...

(2 pages) 45 0 0.0 Nov/2007

Subjects: Science Essays > Physics


oups. Amino acids differ in their unique side chains. They can be made up of anything from a single hydrogen atom, to a complex 10-carbon molecule.Tryptophan is unique in that its side chain is also t ...

(2 pages) 10 0 0.0 Feb/2008

Subjects: Science Essays > Biology


1 Butanol is a compound called an alcohol. This is because of a hydrogen atom of a carbon compound is replaced by an -OH group. From butane we get butanol. Alcohols ... nols and have the general formula CnH2n+1OH. Butanol is a liquid at room temperature because of the hydrogen bonding that has strong intermolecular forces so allows butanol to have a much higher boili ...

(2 pages) 10 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Lewis Acids and Bases

is acid and trimethylamine is Lewis base. A curved arrow originates from nitrogen atom and point to hydrogen atom. The initial product of the acid-base reaction is trimethylnitronium chloride.In the b ...

(1 pages) 8 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry


nts change colour is that when you add acid to anthocyanin, the acid gives the anthocyanin an extra hydrogen atom that makes the molecule a little bigger and changes the colour to pink. When bases are ... es the molecule a little bigger and changes the colour to pink. When bases are added it removes the hydrogen atom making the anthocyanin smaller and changing its colour to blue-green. We also know tha ...

(17 pages) 14 0 0.0 Aug/2008

Subjects: Science Essays > Chemistry

Year 12 Chemistry: Production of Materials. Ethanol Research Task

a molecule of water is removed from a compound. The molecule of water is released as one product.A hydrogen atom and OH group are removed from adjacent carbon atoms to form the water molecule. Each c ... s added to a compound.In the hydration of ethylene, one of the two carbon-carbon bonds is broken. A hydrogen atom of the water molecule is added to a carbon atom. The OH group of the water molecule is ...

(7 pages) 15 0 0.0 Jun/2010

Subjects: Science Essays > Chemistry