Pythagoras spent most of his early years in Samos but traveled with his father. He was taught by the Chaldeans and the learned men of Syria. Among his teachers‚ there were three philosophers who influenced Pythagoras while he was a young man‚ Pherekydes‚ Thales‚ and Aleximander. They influenced Pythagoras’ interest in geometry and cosmology‚ encouraging him to pursue his studies in Egypt. In 535 BC‚ Pythagoras went to Egypt where he visited many temples and took part in many discussions with priests. Then
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Chemical Bonds Chemical Bond: is the force that holds atoms together in a compound. They form because they lower the potential energy of the charged particles that compose atoms. Chemical bonds can be broadly classified into two types: Ionic and Covalent. Ionic: metal & nonmetal Metals have a tendency to lose electrons and nonmetals have a tendency to gain them. The metal atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic
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electron pairs between two atoms. Translation: -Ionic bonding happens between a metal and a non-metal (east coast and west coast) -One atom completely donates its valence electrons to another atom -Metals become CATIONS (positive charge/oxidation state); Non-metals become ANIONS (negative charge/oxidation state) Example: Na + Cl → Na+Cl- or Mg + O → Mg2+O2- -In covalent bonding one atom completely shares its valence electrons with another atom (west coast and west coast)
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correct answer is: electrons. Question 2 of 20 The structural unit that retains the properties of an element is the molecule. atom. cell. electron. 5 out of 5 Correct!! Question 3 of 20 Which of the following are found in the nucleus of an atom? Protons Neutrons Electrons A and B 0 out of 5 The correct answer is: A and B Question 4 of 20 The component of an atom or molecule that is most important in determining its chemical properties is the isotope. neutron. electron. proton. 0
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acknowledge the reason atoms react with one another in the first place. Each element has a certain number of valence electrons‚ an example being Sodium having one valence electron. When elements react they are trying to get a full shell of eight valence electrons by either giving away‚ taking in‚ or sharing valence electrons. The best way I can think to describe how atoms decide which method to do is that atoms have their
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what an atom is and what its components are. One of these discoverers‚ John Dalton‚ developed the first modern atomic theory. Although much of his theory is still true today‚ one point was disproved by Ernest Rutherford. Dalton’s atomic theory had several parts to it. He believed atoms were indivisible‚ or impossible to break down into smaller particles. Also‚ he said elements are all consisted of atoms and that the atoms of each element are different from each other. All of the atoms of the
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model of the atom that helped establish many scientific concepts and also created the foundation for more modern models. His model suggested that atoms are the smallest particle of an element‚ that atoms of different elements have different masses‚ and that they are solid‚ indestructible units - much like a billiard ball .He called his model the " Billiard Ball model" because he thought that atoms looked like billiard balls from pool. Dalton’s Atomic Theory included five main points. Atoms: Make
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Do you need help organizing your thoughts for 2.06? Try going through this outline to follow your carbon atom…This is a pre-writing activity to organize your thoughts and the information to include in your 2.06 assignment Remember‚ in reference to your instructions‚ you are to write a journal entry or design a presentation in which you describe a carbon’s atom journey through photosynthesis and cellular respiration. Note: You are to start with carbon as being part of a carbon dioxide molecule
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Structure of the Atom Dense nucleus composed of neutrons (0 charge) and protons (+ charge) and surrounded by orbital electrons (- charge). Neutrons and protons firmly held in the nucleus while electrons are very loosely held and are easy to remove. When electrons are removed from the atom‚ two charged particles (ions) are produced the positively charged atom and the negative electron. Energy is absorbed to remove the electron from the atom. Atomic Notation Chemical symbols such as C for
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half-life using a sample to represent radioactive atoms. Materials 200 M&M® candies‚ pennies‚ or other small candy/item with two distinct sides shoe box or other small box with a lid Procedure 1. Place 200 candies in the shoe box‚ lettered sides up. The candies will stand for atoms of a hypothetical radioactive element. 2. Cover the box and shake it vigorously for three seconds. This is one time interval. 3. Remove the lid and take out any candies (atoms) that have that are now showing lettered sides
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