Ch 2.1 and 2.2 Review
... What is the difference between cohesion and adhesion? Cohesion – Water is attracted to itself. Surface tension is an example, the water molecules attached to each other make a layer on the surface. Adhesion – Water molecules are attracted to other types of molecules ex) water and glass ...
... What is the difference between cohesion and adhesion? Cohesion – Water is attracted to itself. Surface tension is an example, the water molecules attached to each other make a layer on the surface. Adhesion – Water molecules are attracted to other types of molecules ex) water and glass ...
Recitation Activity 6 (Chem 121) Chapter 6
... A. This element is a noble gas with exactly 18 electrons with azimuthal quantum number, l =1.. krypton B. A p-block element from the 5th period with 4 valence electrons. tin C. A transition metal from the 6th period with 3 unpaired electrons. iridium D. This transition metal element has only one ele ...
... A. This element is a noble gas with exactly 18 electrons with azimuthal quantum number, l =1.. krypton B. A p-block element from the 5th period with 4 valence electrons. tin C. A transition metal from the 6th period with 3 unpaired electrons. iridium D. This transition metal element has only one ele ...
Name_____________________________________ Chemistry
... 109. __________________________ States that the volume of a gas is directly proportional to its amount when pressure & temperature are held constant. This law also states that 1 mole of any gas at STP contains 6.02 x 1023 molecules, and occupies a volume of 22.4 Liters ...
... 109. __________________________ States that the volume of a gas is directly proportional to its amount when pressure & temperature are held constant. This law also states that 1 mole of any gas at STP contains 6.02 x 1023 molecules, and occupies a volume of 22.4 Liters ...
Fundamental of Organic chemistry
... The hybrid orbitals are in tetravalent arrangement in order to minimize the repulsion among them. For such sp3 orbitals overlapping with is orbitals from four hydrogen atoms, methane is formed. ...
... The hybrid orbitals are in tetravalent arrangement in order to minimize the repulsion among them. For such sp3 orbitals overlapping with is orbitals from four hydrogen atoms, methane is formed. ...
R - University of St Andrews
... Thus, energy levels turn out to be dependent on two quantum numbers, but only when one takes relativistic considerations into account. Without relativity, we get the same formula for E as before. Relativistic correction: electrons in very eccentric orbits have large velocities when they are near the ...
... Thus, energy levels turn out to be dependent on two quantum numbers, but only when one takes relativistic considerations into account. Without relativity, we get the same formula for E as before. Relativistic correction: electrons in very eccentric orbits have large velocities when they are near the ...
Atom The smallest part of an element that can exist on its own
... Dibasic acid One which has 2 replaceable H atoms per molecule Isotopes Atoms having the same atomic number but different mass numbers - As the number of protons increases, the number of neutrons increases relatively faster, so small atoms have proton and neutron numbers which are comparable whereas ...
... Dibasic acid One which has 2 replaceable H atoms per molecule Isotopes Atoms having the same atomic number but different mass numbers - As the number of protons increases, the number of neutrons increases relatively faster, so small atoms have proton and neutron numbers which are comparable whereas ...
PowerPoint Presentation - Chapter 2
... Atomic Number and Atomic Mass • Atoms of the various elements differ in number of subatomic particles • An element’s atomic number is the number of protons in its nucleus • An element’s mass number is the sum of protons plus neutrons in the nucleus • Atomic mass, the atom’s total mass, can be appro ...
... Atomic Number and Atomic Mass • Atoms of the various elements differ in number of subatomic particles • An element’s atomic number is the number of protons in its nucleus • An element’s mass number is the sum of protons plus neutrons in the nucleus • Atomic mass, the atom’s total mass, can be appro ...
Reporting Category 3: Bonding and Chemical Reactions
... Metallic atoms have few valence electrons and low ionization energies. The bonds holding metallic atoms together in the solid and liquid phases, however, are apparently strong, as metals have fairly high melting and boiling points. A metallic atom may be considered to have a central portion, or core ...
... Metallic atoms have few valence electrons and low ionization energies. The bonds holding metallic atoms together in the solid and liquid phases, however, are apparently strong, as metals have fairly high melting and boiling points. A metallic atom may be considered to have a central portion, or core ...
Document
... In this reaction two light atomic nuclei, when they are very close to each other, fuse together to form a single heavier nucleus of a new element. The process is exothermic (release of energy). The nuclear fusions occur at only very high temperatures. When 2 hydrogen nuclei fuse together by nuclear ...
... In this reaction two light atomic nuclei, when they are very close to each other, fuse together to form a single heavier nucleus of a new element. The process is exothermic (release of energy). The nuclear fusions occur at only very high temperatures. When 2 hydrogen nuclei fuse together by nuclear ...
Theories of Covalent Bonding
... • A covalent bonds results from the overlap of valence atomic orbitals on neighboring atoms occupied by unpaired electrons and the formation of an electron pair which has highest probability to be between the nuclei ...
... • A covalent bonds results from the overlap of valence atomic orbitals on neighboring atoms occupied by unpaired electrons and the formation of an electron pair which has highest probability to be between the nuclei ...
www.tutor-homework.com (for tutoring, homework help, or help with
... The Pauli exclusion principle requires that a. no two electrons in the same atom can have the same set of four quantum numbers. b. the wavelength of a photon of light times its frequency is equal to the speed of light. c. an electron can have either particle character or wave character. d. the wavel ...
... The Pauli exclusion principle requires that a. no two electrons in the same atom can have the same set of four quantum numbers. b. the wavelength of a photon of light times its frequency is equal to the speed of light. c. an electron can have either particle character or wave character. d. the wavel ...
Writing Formulas
... Writing Ionic Formulas When writing the chemical formula for ionic compounds put the cation first followed by the anion and use subscripts to indicate the number of each ion present. Remember the algebraic sum of the ions' oxidation numbers must equal zero. (Balance) Learn the polyatomic ions. ...
... Writing Ionic Formulas When writing the chemical formula for ionic compounds put the cation first followed by the anion and use subscripts to indicate the number of each ion present. Remember the algebraic sum of the ions' oxidation numbers must equal zero. (Balance) Learn the polyatomic ions. ...
This podcast will discuss two related misconceptions about solubility
... completely. Many of my high school students didn’t know how to separate salt from salt water when they began chemistry. In reality, there is a spectrum of solubilities from nearly insoluble, to slightly soluble, to almost completely soluble. Of course the solubility depends on which solvent and the ...
... completely. Many of my high school students didn’t know how to separate salt from salt water when they began chemistry. In reality, there is a spectrum of solubilities from nearly insoluble, to slightly soluble, to almost completely soluble. Of course the solubility depends on which solvent and the ...
CM1111* Question 1 (40 marks) Multiple Choice Questions, 5 marks
... D. For an s orbital, at a particular distance from the nucleus, the probability of finding the electron is equal in all directions. (5) Which of the following statement(s) is/are not true? A. The node of an orbital refers to the region where its wavefunction is zero. B. To find the energy of the ele ...
... D. For an s orbital, at a particular distance from the nucleus, the probability of finding the electron is equal in all directions. (5) Which of the following statement(s) is/are not true? A. The node of an orbital refers to the region where its wavefunction is zero. B. To find the energy of the ele ...
Electrons in Atoms
... A. Based on mathematical equation (previous models were basically physical) B. Concerned with predicting the probable location of electrons 1. when all the possible mathematical solutions are graphed, a 3-D shape results (a "cloud" of probability) (orbital) 2. although drawn spherical, atom is not n ...
... A. Based on mathematical equation (previous models were basically physical) B. Concerned with predicting the probable location of electrons 1. when all the possible mathematical solutions are graphed, a 3-D shape results (a "cloud" of probability) (orbital) 2. although drawn spherical, atom is not n ...
Electrons in Atoms
... A. Based on mathematical equation (previous models were basically physical) B. Concerned with predicting the probable location of electrons 1. when all the possible mathematical solutions are graphed, a 3-D shape results (a "cloud" of probability) (orbital) 2. although drawn spherical, atom is not n ...
... A. Based on mathematical equation (previous models were basically physical) B. Concerned with predicting the probable location of electrons 1. when all the possible mathematical solutions are graphed, a 3-D shape results (a "cloud" of probability) (orbital) 2. although drawn spherical, atom is not n ...
Chemistry (CP) Final Exam Study Guide 1
... ____ 21. All of the following are physical properties of matter EXCEPT ____. a. mass c. melting point b. color d. ability to rust ____ 22. Which of the following is NOT a physical property of water? a. It has a boiling point of 100 C. b. It is a colorless liquid. c. It is composed of hydrogen and ox ...
... ____ 21. All of the following are physical properties of matter EXCEPT ____. a. mass c. melting point b. color d. ability to rust ____ 22. Which of the following is NOT a physical property of water? a. It has a boiling point of 100 C. b. It is a colorless liquid. c. It is composed of hydrogen and ox ...
Copyright © 2014 Edmentum - All rights reserved. AP Physics
... I. There is an inherent indeterminancy in the position and momentum of particles. II. The energy of atomic oscillations occurs in exact multiples of a discrete unit. III. Electrons, atoms, and all particles with momentum also exist as waves. IV. No two electrons in an atom may have the same set of q ...
... I. There is an inherent indeterminancy in the position and momentum of particles. II. The energy of atomic oscillations occurs in exact multiples of a discrete unit. III. Electrons, atoms, and all particles with momentum also exist as waves. IV. No two electrons in an atom may have the same set of q ...
Elements and Atoms
... • All matter is made of atoms • Atoms are the building blocks of matter, sort of how bricks are the building blocks of houses. ...
... • All matter is made of atoms • Atoms are the building blocks of matter, sort of how bricks are the building blocks of houses. ...
Chemical bond
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are ""strong bonds"" such as covalent or ionic bonds and ""weak bonds"" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.Since opposite charges attract via a simple electromagnetic force, the negatively charged electrons that are orbiting the nucleus and the positively charged protons in the nucleus attract each other. An electron positioned between two nuclei will be attracted to both of them, and the nuclei will be attracted toward electrons in this position. This attraction constitutes the chemical bond. Due to the matter wave nature of electrons and their smaller mass, they must occupy a much larger amount of volume compared with the nuclei, and this volume occupied by the electrons keeps the atomic nuclei relatively far apart, as compared with the size of the nuclei themselves. This phenomenon limits the distance between nuclei and atoms in a bond.In general, strong chemical bonding is associated with the sharing or transfer of electrons between the participating atoms. The atoms in molecules, crystals, metals and diatomic gases—indeed most of the physical environment around us—are held together by chemical bonds, which dictate the structure and the bulk properties of matter.All bonds can be explained by quantum theory, but, in practice, simplification rules allow chemists to predict the strength, directionality, and polarity of bonds. The octet rule and VSEPR theory are two examples. More sophisticated theories are valence bond theory which includes orbital hybridization and resonance, and the linear combination of atomic orbitals molecular orbital method which includes ligand field theory. Electrostatics are used to describe bond polarities and the effects they have on chemical substances.