Atoms, Elements, and Matter Lecture
Atoms, Elements, and Matter Lecture Biol 1107
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This 2 page Class Notes was uploaded by Amanda Notetaker on Wednesday September 9, 2015. The Class Notes belongs to Biol 1107 at University of Connecticut taught by Thomas Abbott in Summer 2015. Since its upload, it has received 25 views. For similar materials see Principles of Biology I in Biology at University of Connecticut.
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Date Created: 09/09/15
Atoms Elements and Matter Lecture Notes Matter 0 All matter is composed of the same types of matter 0 Anything that takes up space and has mass everything on earth living or not 0 Not dependent on us perceiving it 0 Why does any matter exist Taking a step back and viewing the larger picture can sometimes help us understand the true inner workings of nature Electrons can occupy different energy states 0 absorb energy 0 loserelease energy 0 harness the power of electrons to extract energy to perform work 0 manipulating energy or the ability to do so and then perform work is what separates living creatures with other forms of matter that s what life is Carbon 0 Can share with itself 0 Bonds with other elements easily 0 Greater capacity to create an environment for specific actions of electron interactions Enzymes o produce various enzymes that orchestrate process organize compositions and structure Food as Fuel 0 In order to gain energy from fuel must break bonds or from bonds through electron loss or gain between atoms so electrons move to lower energy states for stabilization 0 Food is fuel as raw materialsbuilding blocks for life creating new cells Element 0 A pure substance that cannot be chemically broken down further 0 Atoms are the same identical chemical and physical properties 0 118 known 92 natural Compounds 0 Made of two or more elements 0 Chemically combined 96 of all matter found in living organisms H C N O 3 P Ca 8 Remaining trace elements Trace element any element needed by an organism only in tiny quantities but essential for proper functioning Atoms o Protons charge 0 Electrons charge 0 Neutrons neutral charge 0 Atomic Number number of protons Mass Number number of protons and neutrons Isotopes atoms that have the same number of protons but different number of neutrons Electron Shell layered orbitals around nucleus Valence Electrons outermost shell electrons Noble gases have full outer shells
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