matter - Firelands Local Schools
... b. A compound is different from the elements that comprise it, while a mixture may have some of the properties similar to the pure substances that make it c. Heterogeneous mixture: a mixture that substances aren’t uniformly mixed 1. Example: flour and water d. Homogeneous mixture: a mixture that su ...
... b. A compound is different from the elements that comprise it, while a mixture may have some of the properties similar to the pure substances that make it c. Heterogeneous mixture: a mixture that substances aren’t uniformly mixed 1. Example: flour and water d. Homogeneous mixture: a mixture that su ...
Recitation Activity 6 (Chem 121) Chapter 6
... (b) What equation relates all 3 of the above (frequency, wavelength and energy)? E=hν E=hc/λ (c) Use the Bohr model of the hydrogen atom to determine the wavelength of the photon given off following transition B. Identify the region of the electromagnetic spectrum (IR, Visible, UV, X-rays, etc.) tha ...
... (b) What equation relates all 3 of the above (frequency, wavelength and energy)? E=hν E=hc/λ (c) Use the Bohr model of the hydrogen atom to determine the wavelength of the photon given off following transition B. Identify the region of the electromagnetic spectrum (IR, Visible, UV, X-rays, etc.) tha ...
Quantum Model Worksheet
... 5. Complete the following table to indicate the total number of orbitals in each energy level (n). In the remaining columns, specify how many of those orbitals are s, p, d, and f. Level n ...
... 5. Complete the following table to indicate the total number of orbitals in each energy level (n). In the remaining columns, specify how many of those orbitals are s, p, d, and f. Level n ...
Chemical Reactions
... Electrical – results from the movement of charged particles Mechanical – directly involved in moving matter Radiant or electromagnetic – energy traveling in waves (i.e., visible light, ultraviolet light, and X-rays) ...
... Electrical – results from the movement of charged particles Mechanical – directly involved in moving matter Radiant or electromagnetic – energy traveling in waves (i.e., visible light, ultraviolet light, and X-rays) ...
Quarterly 1 Review Trupia - Trupia
... 84. Fluorine is a Group 17 element. Fluorine is the most electronegative and reactive of all elements. It is a pale yellow, corrosive gas, which reacts with practically all organic and inorganic substances. a Draw the Lewis electron-dot structure for an atom of fluorine. b What is the definition (or ...
... 84. Fluorine is a Group 17 element. Fluorine is the most electronegative and reactive of all elements. It is a pale yellow, corrosive gas, which reacts with practically all organic and inorganic substances. a Draw the Lewis electron-dot structure for an atom of fluorine. b What is the definition (or ...
Lecture 11
... It is worthwhile to conclude this Lecture with a few remarks. • The formula for the energy levels reproduces the Bohr spectrum, in agreement with the experimental data. The degeneracy of each level can only be obtained by the proper quantum-mechanical description that we have presented. • The Bohr r ...
... It is worthwhile to conclude this Lecture with a few remarks. • The formula for the energy levels reproduces the Bohr spectrum, in agreement with the experimental data. The degeneracy of each level can only be obtained by the proper quantum-mechanical description that we have presented. • The Bohr r ...
AHSGE Review
... It has standards for length, mass, time, electric current, temperature, amount of substance, and luminous intensity. Prefixes are used for very large or very small numbers. Conversions can be made by moving ...
... It has standards for length, mass, time, electric current, temperature, amount of substance, and luminous intensity. Prefixes are used for very large or very small numbers. Conversions can be made by moving ...
Review for Exam 1
... Determine how many of each ion type is needed for an overall charge of zero. When the cation and anion have different charges, use the ion charges to determine the number of ions of each needed. ...
... Determine how many of each ion type is needed for an overall charge of zero. When the cation and anion have different charges, use the ion charges to determine the number of ions of each needed. ...
Atom:Mole TEST05key
... 1) collisions between electrons of different energies. 2) changes within the nucleus of the atom. 3) electrons changing directly into energy. 4) electrons moving to lower energy levels. ANS: 4 12. When Rutherford bombarded gold foil with positively charged alpha particles, most of the particles went ...
... 1) collisions between electrons of different energies. 2) changes within the nucleus of the atom. 3) electrons changing directly into energy. 4) electrons moving to lower energy levels. ANS: 4 12. When Rutherford bombarded gold foil with positively charged alpha particles, most of the particles went ...
Quantum Model Worksheet
... 5. Complete the following table to indicate the total number of orbitals in each energy level (n). In the remaining columns, specify how many of those orbitals are s, p, d, and f. Level n ...
... 5. Complete the following table to indicate the total number of orbitals in each energy level (n). In the remaining columns, specify how many of those orbitals are s, p, d, and f. Level n ...
CHEMISTRY: MIDTERM EXAM REVIEW SPRING 2013 Multiple
... ____ 14. How do the isotopes hydrogen-1 and hydrogen-2 differ? a. Hydrogen-2 has one more electron than hydrogen-1. b. Hydrogen-2 has one proton; hydrogen-1 has none. c. Hydrogen-2 has one neutron; hydrogen-1 has none. d. Hydrogen-2 has two protons; hydrogen-1 has one. ____ 15. Which of the followi ...
... ____ 14. How do the isotopes hydrogen-1 and hydrogen-2 differ? a. Hydrogen-2 has one more electron than hydrogen-1. b. Hydrogen-2 has one proton; hydrogen-1 has none. c. Hydrogen-2 has one neutron; hydrogen-1 has none. d. Hydrogen-2 has two protons; hydrogen-1 has one. ____ 15. Which of the followi ...
What You Need to Know to Pass the Chemistry
... 2. A mixture is composed of two or more different substances that may be physically separated. A mixture may be homogeneous (uniform – a solution), or heterogeneous (uneven). Substances in a mixture retain their original properties. Substances in a mixture may be separated by their size, pola ...
... 2. A mixture is composed of two or more different substances that may be physically separated. A mixture may be homogeneous (uniform – a solution), or heterogeneous (uneven). Substances in a mixture retain their original properties. Substances in a mixture may be separated by their size, pola ...
CHEMICAL REACTION
... Characteristics of a Chemical Equation • Represents the known facts • Contains the correct formulas of reactants and products • The Law of Conservation of Mass is followed both in number of atoms and masses ...
... Characteristics of a Chemical Equation • Represents the known facts • Contains the correct formulas of reactants and products • The Law of Conservation of Mass is followed both in number of atoms and masses ...
Instructor`s Notes Atomic Tiles: Play Your Way from Atoms to
... 3a. Students know the structure of the atom and know it is composed of protons, neutrons, and electrons. 3b. Students know that compounds are formed by combining two or more different elements and that compounds have properties that are different from their constituent elements. 5a. Students know re ...
... 3a. Students know the structure of the atom and know it is composed of protons, neutrons, and electrons. 3b. Students know that compounds are formed by combining two or more different elements and that compounds have properties that are different from their constituent elements. 5a. Students know re ...
The format of this test is MULTIPLE CHOICE
... 2. Use the word bank to match the correct term with its definition. decomposition reaction Law of Conservation of Mass double replacement reactions neutralization reaction ...
... 2. Use the word bank to match the correct term with its definition. decomposition reaction Law of Conservation of Mass double replacement reactions neutralization reaction ...
Quantum Mechanics: PHL555 Tutorial 2
... Is an eigenfunction of L2 ? If so what is its corresponding eigenvalue. If not what are the possible values we shall obtain when we shall measure L2 . (b) What are the probabilities of finding out the particle in various m states? 4. (a) A particle is in a spherically symmetric potential is known ...
... Is an eigenfunction of L2 ? If so what is its corresponding eigenvalue. If not what are the possible values we shall obtain when we shall measure L2 . (b) What are the probabilities of finding out the particle in various m states? 4. (a) A particle is in a spherically symmetric potential is known ...
Stoichiometry and Balanced Reactions Chemical Accounting
... – Combustion: Fuel + Oxidant → Products (usually CO2 and H2O) • Balanced reaction must have the correct identities of reactants and products and must follow the law of conservation of matter • Reactions are balanced by changing coefficients for each species… NEVER change subscripts in formulas • Typ ...
... – Combustion: Fuel + Oxidant → Products (usually CO2 and H2O) • Balanced reaction must have the correct identities of reactants and products and must follow the law of conservation of matter • Reactions are balanced by changing coefficients for each species… NEVER change subscripts in formulas • Typ ...
1305- practise exam 2
... -------1. What is the term for the value which indicates the number of protons for an atom of a given element? A) Atomic notation? B) Atomic number? C) Atomic mass? D) Mass number? -------2. What is the term for the shorthand description of the arrangement of electrons by sublevels according to incr ...
... -------1. What is the term for the value which indicates the number of protons for an atom of a given element? A) Atomic notation? B) Atomic number? C) Atomic mass? D) Mass number? -------2. What is the term for the shorthand description of the arrangement of electrons by sublevels according to incr ...
File
... wattage's, and when you switch from one setting to the next, the power immediately jumps to the new setting instead of just gradually increasing. It is the fact that electrons can only exist at discrete energy levels which prevents them from spiraling into the nucleus, as classical physics predicts. ...
... wattage's, and when you switch from one setting to the next, the power immediately jumps to the new setting instead of just gradually increasing. It is the fact that electrons can only exist at discrete energy levels which prevents them from spiraling into the nucleus, as classical physics predicts. ...
Chapter 1 Introduction: Matter and Measurement
... Example of a theory – Kinetic Molecular Theory – atoms, molecules, ions in constant random motion unless constrained. Use Ar atom as an example. Draw diagrams of s, l, and g Ar and use them to show how this theory explains all of the observations in chart above describing properties of states of mat ...
... Example of a theory – Kinetic Molecular Theory – atoms, molecules, ions in constant random motion unless constrained. Use Ar atom as an example. Draw diagrams of s, l, and g Ar and use them to show how this theory explains all of the observations in chart above describing properties of states of mat ...
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.