Chemical Reactions PPT
... Since oxidation is the loss of electrons and reduction is the gain of electrons, they must occur simultaneously. ** Any chemical process in which elements undergo changes in oxidation number is an oxidation – reduction reaction , or redox reaction for short.** ...
... Since oxidation is the loss of electrons and reduction is the gain of electrons, they must occur simultaneously. ** Any chemical process in which elements undergo changes in oxidation number is an oxidation – reduction reaction , or redox reaction for short.** ...
quantum mechanics
... successfully predict wavelengths of light emitted for an electron transitioning between two energy levels within the hydrogen atom predict the most probable radius of the energy levels from nucleus This model fails when applied to POLYELECTRONIC systems (atoms with more than one e-). e- interactions ...
... successfully predict wavelengths of light emitted for an electron transitioning between two energy levels within the hydrogen atom predict the most probable radius of the energy levels from nucleus This model fails when applied to POLYELECTRONIC systems (atoms with more than one e-). e- interactions ...
File
... Each element is composed of tiny indestructible particles called atoms All atoms of a given element have the same mass and properties that distinguishes them from other atoms/elements Atoms combine in simple, whole number ratios to form compounds ...
... Each element is composed of tiny indestructible particles called atoms All atoms of a given element have the same mass and properties that distinguishes them from other atoms/elements Atoms combine in simple, whole number ratios to form compounds ...
The Development of Atomic Theory
... In the early 1800’s, scientists studying electricity produced tubes known as Geissler tubes. They consisted of a hollow glass tube with electrodes (metal) embedded at each end. When a source of electricity was attached to the electrodes, the gas inside the tube would glow. In 1855, a German physicis ...
... In the early 1800’s, scientists studying electricity produced tubes known as Geissler tubes. They consisted of a hollow glass tube with electrodes (metal) embedded at each end. When a source of electricity was attached to the electrodes, the gas inside the tube would glow. In 1855, a German physicis ...
Atomic structure - Don`t Trust Atoms
... The atoms of any particular element always contain the same number of protons. For example: hydrogen atoms always contain 1 proton; carbon atoms always contain 6 protons; magnesium atoms always contain 12 protons, The number of protons in an atom is known as its atomic number or proton number. ...
... The atoms of any particular element always contain the same number of protons. For example: hydrogen atoms always contain 1 proton; carbon atoms always contain 6 protons; magnesium atoms always contain 12 protons, The number of protons in an atom is known as its atomic number or proton number. ...
Electrochemistry
... Rules for Assigning Oxidation Numbers (In order of priority): 1. The oxidation number of any pure element is _________. 2. The oxidation number of a monatomic ion is __________ to its charge. 3. The ______ of the oxidation numbers in a compound is zero if ____________, or equal to the ___________ if ...
... Rules for Assigning Oxidation Numbers (In order of priority): 1. The oxidation number of any pure element is _________. 2. The oxidation number of a monatomic ion is __________ to its charge. 3. The ______ of the oxidation numbers in a compound is zero if ____________, or equal to the ___________ if ...
4.1 – 4.2 Development of Atomic Theory
... 2. Name the Accepted Model at the time 3. Name the year of discovery 4. Draw the most currently accepted model Democritus ...
... 2. Name the Accepted Model at the time 3. Name the year of discovery 4. Draw the most currently accepted model Democritus ...
Atoms, Molecules and Ions
... same size, mass and chemical properties. The atoms of one element are different from the atoms of all other elements. 3. Compounds are composed of atoms of more than one element. In any compound, the ratio of the numbers of atoms of any two of the elements present is either an integer or a simple fr ...
... same size, mass and chemical properties. The atoms of one element are different from the atoms of all other elements. 3. Compounds are composed of atoms of more than one element. In any compound, the ratio of the numbers of atoms of any two of the elements present is either an integer or a simple fr ...
What is Chemistry?
... body. With such an enormous range of topics, it is essential to know about chemistry at some level in order to understand the world around us. ...
... body. With such an enormous range of topics, it is essential to know about chemistry at some level in order to understand the world around us. ...
Interaction of Radiation with Matter
... atoms. Unstable atoms differ from stable atoms because they have an excess of energy or mass or both. Unstable atoms are said to be radioactive. In order to reach stability, these atoms give off, or emit, the excess energy or mass. These emissions are called radiation. ...
... atoms. Unstable atoms differ from stable atoms because they have an excess of energy or mass or both. Unstable atoms are said to be radioactive. In order to reach stability, these atoms give off, or emit, the excess energy or mass. These emissions are called radiation. ...
Chapter 2 Review
... 3 protons, 3 neutrons and 3 protons, 4 neutrons 3 protons, 3 neutrons and 4 protons, 4 neutrons 4 protons, 4 neutrons and 3 protons, 4 neutrons 3 protons, 4 neutrons and 4 protons, 3 neutrons ...
... 3 protons, 3 neutrons and 3 protons, 4 neutrons 3 protons, 3 neutrons and 4 protons, 4 neutrons 4 protons, 4 neutrons and 3 protons, 4 neutrons 3 protons, 4 neutrons and 4 protons, 3 neutrons ...
Chemistry I Honors
... The species represented above all have the same number of chlorine atoms attached to the central atom. b.On the basis of the Lewis structures drawn in part (a), answer the following questions about the particular species indicated. i. What is the Cl-Ge-Cl bond angle in GeCl4? ii.Is SeCl4 polar? Expl ...
... The species represented above all have the same number of chlorine atoms attached to the central atom. b.On the basis of the Lewis structures drawn in part (a), answer the following questions about the particular species indicated. i. What is the Cl-Ge-Cl bond angle in GeCl4? ii.Is SeCl4 polar? Expl ...
Atomic structure
... He suggested that the there was a small, dense, positive charge in a central nucleus. With this holding the large, negative electron cloud in place by electrical attraction. ...
... He suggested that the there was a small, dense, positive charge in a central nucleus. With this holding the large, negative electron cloud in place by electrical attraction. ...
Atomic structure
... Despite these differences, isotopes are chemically alike because they have identical numbers of protons and electrons, which are the subatomic particles responsible for chemical behavior. ...
... Despite these differences, isotopes are chemically alike because they have identical numbers of protons and electrons, which are the subatomic particles responsible for chemical behavior. ...
Honors Chemistry
... 2. Electrons reside in __________________, aka energy shells. 3. The energy of the electron shell and the distance of the shell from the nucleus are __________________. (The energy of the level ...
... 2. Electrons reside in __________________, aka energy shells. 3. The energy of the electron shell and the distance of the shell from the nucleus are __________________. (The energy of the level ...
2.1 The Nature of Matter
... called macromolecules. Macromolecules form by polymerization, in which smaller units called monomers join together to form polymers. Biochemists sort the macromolecules in living things into groups based on their chemical composition. Carbohydrates (starches and sugars) are composed of carbon, hydro ...
... called macromolecules. Macromolecules form by polymerization, in which smaller units called monomers join together to form polymers. Biochemists sort the macromolecules in living things into groups based on their chemical composition. Carbohydrates (starches and sugars) are composed of carbon, hydro ...
Unit 3 Practice Test
... A. Non-metals generally have the higher electronegativities and tend to attract electrons to themselves in a chemical bond. B. Elements with high ionization energies tend to have small atomic radii. C. Elements with high electronegativities generally form ions with small radii. D. The second ionizat ...
... A. Non-metals generally have the higher electronegativities and tend to attract electrons to themselves in a chemical bond. B. Elements with high ionization energies tend to have small atomic radii. C. Elements with high electronegativities generally form ions with small radii. D. The second ionizat ...
Unit 3: Quantum Mechanics Section A: History of Atomic Theory
... elements according to their atomic weight; however, when isotopes of elements were discovered in the late 1800s this concept changed. Chemical reactions involve the combination of atoms, not the destruction of atoms. This is largely based on Antonie Lavoisier’s law of conservation of matter. Whe ...
... elements according to their atomic weight; however, when isotopes of elements were discovered in the late 1800s this concept changed. Chemical reactions involve the combination of atoms, not the destruction of atoms. This is largely based on Antonie Lavoisier’s law of conservation of matter. Whe ...
Pre-Lecture 12
... • Uncharged particles in the neutron, with mass ~ that of proton. • The # of neutrons need not match # of protons in atom, eg. H typically has 1 proton and 0 neutrons, but some H atoms may have 1 neutron, but always 1 proton, (called “heavy hydrogen”) • Isotopes = atoms of same element that contain ...
... • Uncharged particles in the neutron, with mass ~ that of proton. • The # of neutrons need not match # of protons in atom, eg. H typically has 1 proton and 0 neutrons, but some H atoms may have 1 neutron, but always 1 proton, (called “heavy hydrogen”) • Isotopes = atoms of same element that contain ...
Elements, Compounds and Mixtures
... chemical compound that can take place in a chemical reaction. • Has the same chemical properties of that element or compound. • Some molecules consist of two atoms of the same element. • Ex. O2 • Other molecules consists of two or more atoms. • Ex. (H2O) ...
... chemical compound that can take place in a chemical reaction. • Has the same chemical properties of that element or compound. • Some molecules consist of two atoms of the same element. • Ex. O2 • Other molecules consists of two or more atoms. • Ex. (H2O) ...
Day 3
... Each student will be assigned an element from the periodic table to make a poster about. The poster will include: 1) The atomic symbol. 2) Information about the number of protons, neutrons, and electrons in each atom. 3) A model of the atom. 4) Historical information (such as who discovered it, if a ...
... Each student will be assigned an element from the periodic table to make a poster about. The poster will include: 1) The atomic symbol. 2) Information about the number of protons, neutrons, and electrons in each atom. 3) A model of the atom. 4) Historical information (such as who discovered it, if a ...
The Atom
... Parts of an atom • Nucleus is the small, dense, positively charged center of the atom. • Protons are positively charged particles in the nucleus. • Neutrons are particles in the nucleus of an atom that have no charge. • Electrons are negatively charged particles found in electron clouds outside the ...
... Parts of an atom • Nucleus is the small, dense, positively charged center of the atom. • Protons are positively charged particles in the nucleus. • Neutrons are particles in the nucleus of an atom that have no charge. • Electrons are negatively charged particles found in electron clouds outside the ...
Lecture Notes
... • This approximation allows the Schrödinger equation for This approximation allows the Schrödinger equation for the atom to be broken into Z separate equations, one for each electron. • A major consequence of the IPA is that each electron can be described by a wave function having the same four ...
... • This approximation allows the Schrödinger equation for This approximation allows the Schrödinger equation for the atom to be broken into Z separate equations, one for each electron. • A major consequence of the IPA is that each electron can be described by a wave function having the same four ...