GY 111 Lecture Note Series Elemental Chemistry
... one chlorine particle (Cl). Up until this century, chemists felt that these particles (atoms or ions) were the basic building blocks of all matter. Atoms were defined as the smallest division of matter that retains characteristics of a particular "thing". Ions were atoms that possessed positive or n ...
... one chlorine particle (Cl). Up until this century, chemists felt that these particles (atoms or ions) were the basic building blocks of all matter. Atoms were defined as the smallest division of matter that retains characteristics of a particular "thing". Ions were atoms that possessed positive or n ...
Vocabulary:
... Bohr’s Atomic Model Planetary System Model – Electrons move around the nucleus of an atom, like the planets around the sun. James Maxwell – Proposed that visible light consists of electromagnetic waves. Maxwell Planck – Suggested that atoms and molecules emit energy in discrete quantities, called qu ...
... Bohr’s Atomic Model Planetary System Model – Electrons move around the nucleus of an atom, like the planets around the sun. James Maxwell – Proposed that visible light consists of electromagnetic waves. Maxwell Planck – Suggested that atoms and molecules emit energy in discrete quantities, called qu ...
Science 9 Unit 2
... the reaction. E.g. a sugar cube takes longer to dissolve than regular refined sugar Energy – the type of energy used will determine how fast the reaction occurs. E.g. if you use electrical energy from a battery the reaction will be faster ...
... the reaction. E.g. a sugar cube takes longer to dissolve than regular refined sugar Energy – the type of energy used will determine how fast the reaction occurs. E.g. if you use electrical energy from a battery the reaction will be faster ...
CHAPTER 4: Structure of the Atom
... The Bohr Model of the Hydrogen Atom Successes and Failures of the Bohr Model Characteristic X-Ray Spectra and Atomic Number Atomic Excitation by Electrons In the present first part of the paper the mechanism of the binding of electrons by a positive nucleus is discussed in relation to Planck’s theor ...
... The Bohr Model of the Hydrogen Atom Successes and Failures of the Bohr Model Characteristic X-Ray Spectra and Atomic Number Atomic Excitation by Electrons In the present first part of the paper the mechanism of the binding of electrons by a positive nucleus is discussed in relation to Planck’s theor ...
Structure of matter.
... the spin is not zero the nuclei have a magnetic moment i.e, they behave like small magnets NMR – nuclear magnetic resonance spectroscopy and magnetic resonance imaging (MRI) in radiology are based on this property. ...
... the spin is not zero the nuclei have a magnetic moment i.e, they behave like small magnets NMR – nuclear magnetic resonance spectroscopy and magnetic resonance imaging (MRI) in radiology are based on this property. ...
Review Sheet
... Specific heat capacity Endothermic vs. exothermic Stoichiometry using energy (using enthalpy of reaction and balanced chemical reactions) Calculating H using Hess’s Law, Enthalpy Diagrams, and/or H° of formations Calorimetry calculations to determine H and q Standard States and enthalpy of format ...
... Specific heat capacity Endothermic vs. exothermic Stoichiometry using energy (using enthalpy of reaction and balanced chemical reactions) Calculating H using Hess’s Law, Enthalpy Diagrams, and/or H° of formations Calorimetry calculations to determine H and q Standard States and enthalpy of format ...
Quantum Notes
... proposed in 1905 that light has a dual nature (wave-like and particle-like) • Matter can gain or lose energy only in small, specific amounts called quanta •A quantum is the minimum amount of energy that can be gained or lost by an atom ...
... proposed in 1905 that light has a dual nature (wave-like and particle-like) • Matter can gain or lose energy only in small, specific amounts called quanta •A quantum is the minimum amount of energy that can be gained or lost by an atom ...
Midterm Review
... • A student investigated the physical and chemical properties of a sample of unknown gas and then investigated the gas. Which statement represents a conclusion rather than an experimental observation? 1. The gas is colorless. 2 The gas is carbon dioxide. ...
... • A student investigated the physical and chemical properties of a sample of unknown gas and then investigated the gas. Which statement represents a conclusion rather than an experimental observation? 1. The gas is colorless. 2 The gas is carbon dioxide. ...
2 Atomic Structure
... levels and recognize that the lines in a line spectrum are directly related to these differences. An understanding of convergence is expected. Series should be considered in the ultraviolet, visible and infrared regions of the spectrum. Calculations, knowledge of quantum numbers and historical refer ...
... levels and recognize that the lines in a line spectrum are directly related to these differences. An understanding of convergence is expected. Series should be considered in the ultraviolet, visible and infrared regions of the spectrum. Calculations, knowledge of quantum numbers and historical refer ...
File - SPHS Devil Physics
... explanation of which require new ideas and concepts not found in the classical world. 2. Nature Of Science: a. Observations: Much of the work towards a quantum theory of atoms was guided by the need to explain the observed patterns in atomic spectra. The first quantum model of matter is the Bohr mod ...
... explanation of which require new ideas and concepts not found in the classical world. 2. Nature Of Science: a. Observations: Much of the work towards a quantum theory of atoms was guided by the need to explain the observed patterns in atomic spectra. The first quantum model of matter is the Bohr mod ...
atomic number
... the mass of any sample of pure water, while hydrogen makes up the remaining 1/ of the mass. ...
... the mass of any sample of pure water, while hydrogen makes up the remaining 1/ of the mass. ...
Unit 2 Review Questions Fill in the blank In a(n) change, a new
... The mass number is the sum of electrons and protons in the atom. l. A Bohr diagram shows electrons in orbits about the nucleus. m. A row of the periodic table is called a period. n. The size of atoms increase down a column of the periodic table. o. Alkali metals include fluorine, chlorine, and iodin ...
... The mass number is the sum of electrons and protons in the atom. l. A Bohr diagram shows electrons in orbits about the nucleus. m. A row of the periodic table is called a period. n. The size of atoms increase down a column of the periodic table. o. Alkali metals include fluorine, chlorine, and iodin ...
Periodic Table Jeopardy
... Atomic Theory with evidence. He had four key postulates that he wanted everyone to know. ...
... Atomic Theory with evidence. He had four key postulates that he wanted everyone to know. ...
Notes/All Physics IB/Nuclear/Nuclear Physics 7
... A nucleon is a general term to denote a nuclear particle - that is, either a proton or a neutron. The mass number A of an element is equal to the total number of nucleons (protons + neutrons). Isotopes are atoms that have the same number of protons (Z1= Z2), but a different number of neutrons (N). ( ...
... A nucleon is a general term to denote a nuclear particle - that is, either a proton or a neutron. The mass number A of an element is equal to the total number of nucleons (protons + neutrons). Isotopes are atoms that have the same number of protons (Z1= Z2), but a different number of neutrons (N). ( ...
Problem Set 4
... hydrogen like atom in the presence of an electric field upto second order in Hel given in problem 23 in terms of an infinte sum involving all the eigenstates of the unperturbed hydrogen atom. Estimate the shift using only the n = 2 term ( n is the principal quantum number)in electron volts for the s ...
... hydrogen like atom in the presence of an electric field upto second order in Hel given in problem 23 in terms of an infinte sum involving all the eigenstates of the unperturbed hydrogen atom. Estimate the shift using only the n = 2 term ( n is the principal quantum number)in electron volts for the s ...
Chapter 1 Atoms Properties of Matter Intensive vs. Extensive
... Chapter 1 Atoms Properties of Matter o Intensive vs. Extensive, physical vs. chemical Chemical Change Physical Change Mixtures and Pure Substances Elements and Compounds o Group or Family o Period or Row o Metals o Nonmetals o Metalloids Chapter 2 Scientific Method SI Units of Measur ...
... Chapter 1 Atoms Properties of Matter o Intensive vs. Extensive, physical vs. chemical Chemical Change Physical Change Mixtures and Pure Substances Elements and Compounds o Group or Family o Period or Row o Metals o Nonmetals o Metalloids Chapter 2 Scientific Method SI Units of Measur ...
Mr. Knittel`s Final Review Sheet I Answers
... 10. For the 5 models of the atom: draw a picture of each and describe the progression that was made from the original model to our current understanding of the atom. In Dalton’s atomic theory atoms were seen as indivisible pieces of matter, and were likened to billiard balls (hard, compact, spheres) ...
... 10. For the 5 models of the atom: draw a picture of each and describe the progression that was made from the original model to our current understanding of the atom. In Dalton’s atomic theory atoms were seen as indivisible pieces of matter, and were likened to billiard balls (hard, compact, spheres) ...
3.3 Review Name________________________________ Period_______Date_____________________
... ______ 13. Used Planck’s idea of quantization to explain the line spectrum of hydrogen. ______ 14. Stated that the position and momentum of a moving object cannot be simultaneously measured and known exactly. ______ 15. Labeled each energy level in his atomic model with the principal quantum number, ...
... ______ 13. Used Planck’s idea of quantization to explain the line spectrum of hydrogen. ______ 14. Stated that the position and momentum of a moving object cannot be simultaneously measured and known exactly. ______ 15. Labeled each energy level in his atomic model with the principal quantum number, ...
Atomic theory
In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms. It began as a philosophical concept in ancient Greece and entered the scientific mainstream in the early 19th century when discoveries in the field of chemistry showed that matter did indeed behave as if it were made up of atoms.The word atom comes from the Ancient Greek adjective atomos, meaning ""uncuttable"". 19th century chemists began using the term in connection with the growing number of irreducible chemical elements. While seemingly apropos, around the turn of the 20th century, through various experiments with electromagnetism and radioactivity, physicists discovered that the so-called ""uncuttable atom"" was actually a conglomerate of various subatomic particles (chiefly, electrons, protons and neutrons) which can exist separately from each other. In fact, in certain extreme environments, such as neutron stars, extreme temperature and pressure prevents atoms from existing at all. Since atoms were found to be divisible, physicists later invented the term ""elementary particles"" to describe the ""uncuttable"", though not indestructible, parts of an atom. The field of science which studies subatomic particles is particle physics, and it is in this field that physicists hope to discover the true fundamental nature of matter.