BIOL 1003 Lecture Notes - Lecture 3: Nuclear Transmutation, Electromagnetism, Chemical Element

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22 Nov 2017

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An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 picometers (a ten-billionth of a meter, in the short scale). Atoms are small enough that attempting to predict their behavior using classical physics as if they were billiard balls, for example gives noticeably incorrect predictions due to quantum effects. Through the development of physics, atomic models have incorporated quantum principles to better explain and predict the behavior. Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons. More than 99. 94% of an atom"s mass is in the nucleus.

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The building blocks of carbohydrates are

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all statements are differences between DNA and RNA.

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