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Protons, Neutrons, Electrons, Isotopes

Chemistry, ScienceBy William Anderson (Schoolworkhelper Editorial Team)October 15, 2010 Leave a comment

Isotopes have the same number of protons, but different numbers of neutrons. This means that while the atomic number of an element will NEVER change… The MASS of the atom can change quite a bit depending how many neutrons there are The number of protons in an atom is also called the “atomic number”. This…

Atoms, Subatomic, Bohr-Rutherford Model

ScienceBy William Anderson (Schoolworkhelper Editorial Team)August 18, 2010 Leave a comment

About 100 years ago, scientists came up with a term for the smallest piece of matter: the atom. The word atom comes from the Greek word “atomus” which means “indivisible.” – Since scientists didn’t have very good laboratory equipment over one hundred years ago, they were slightly mistaken about atoms. The atom is the smallest…

Electron Transport and Chemiosmosis

BiologyBy William Anderson (Schoolworkhelper Editorial Team)July 7, 2010 3 Comments

NADH and FADH2 carry electrons to the ETC Each become oxidized, losing two electrons to the ETC The Electron Transport Chain (ETC) Structure Located within the inner mitochondrial membrane Composed of various protein structures arranged in order of increasing electronegativity Ex. weakest electron attractor (NADH dehydrogenase) is at the beginning of the chain and the…

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