PracticeQuestions
... The branch of chemistry that includes the study of materials and processes that occur in living things is A. organic chemistry C. analytical chemistry B. physical chemistry D. biochemistry The branch of chemistry that is concerned with the identification and composition of materials is A. analytical ...
... The branch of chemistry that includes the study of materials and processes that occur in living things is A. organic chemistry C. analytical chemistry B. physical chemistry D. biochemistry The branch of chemistry that is concerned with the identification and composition of materials is A. analytical ...
Chapter 5 reveiw
... c. Hund’s Rule: as many unpaired electrons as possible in a sublevel. i. Ex: When filling a “p sublevel” the 1st three electrons will be placed in separate orbitals, before any electrons are paired up d. Heisenberg Uncertainty: Principle states the impossibility of knowing both velocity and position ...
... c. Hund’s Rule: as many unpaired electrons as possible in a sublevel. i. Ex: When filling a “p sublevel” the 1st three electrons will be placed in separate orbitals, before any electrons are paired up d. Heisenberg Uncertainty: Principle states the impossibility of knowing both velocity and position ...
Multi-electron atoms
... In H, 3s level is on average 9x further than 1s, so 9*Bohr radius. In Na, 11 protons pull 1s, 2s, 2p closer to nucleus distance of 3s not as far out. Electron in 3s is a bit further than 1s in H, but ~same as 2s in Li. Proximity of electrons in 1s, 2s, 2p is what makes 3s a bit bigger. In case of Na ...
... In H, 3s level is on average 9x further than 1s, so 9*Bohr radius. In Na, 11 protons pull 1s, 2s, 2p closer to nucleus distance of 3s not as far out. Electron in 3s is a bit further than 1s in H, but ~same as 2s in Li. Proximity of electrons in 1s, 2s, 2p is what makes 3s a bit bigger. In case of Na ...
Unit 2 Practice Exam exam_2p_08_matter
... 42. Why do atomic radii increase dramatically with each additional row of the periodic table? a. atomic nuclei become increasingly attractive as more protons are added. b. another energy level is utilized by the electrons. c. the energy required to remove an electron is reduced by shielding of inter ...
... 42. Why do atomic radii increase dramatically with each additional row of the periodic table? a. atomic nuclei become increasingly attractive as more protons are added. b. another energy level is utilized by the electrons. c. the energy required to remove an electron is reduced by shielding of inter ...
The Periodic table
... The Energy of an electron: In 1926 Schrodinger showed that laws of quantum mechanics could be used to characterize the motion of electrons. A quantized property is a property that can have only certain values. The energy of an electron is quantized, only certain behavior patterns are allowed. ...
... The Energy of an electron: In 1926 Schrodinger showed that laws of quantum mechanics could be used to characterize the motion of electrons. A quantized property is a property that can have only certain values. The energy of an electron is quantized, only certain behavior patterns are allowed. ...
Lecture 13 (Slides) September 26
... Probabalistic Description of Electrons • Classical physics suggests that we should be able (given sufficient information) to describe the behaviour of any body – its velocity, kinetic energy, potential energy and so on at any point in time. Classical physics suggests that all energies are continuou ...
... Probabalistic Description of Electrons • Classical physics suggests that we should be able (given sufficient information) to describe the behaviour of any body – its velocity, kinetic energy, potential energy and so on at any point in time. Classical physics suggests that all energies are continuou ...
Slide 1 - KaiserScience
... 1. Photoelectric effect: photon is completely absorbed, electron is ejected 2. Photon may be totally absorbed by electron, but not have enough energy to eject it; the electron moves into an excited state 3. The photon can scatter from an atom and lose some energy 4. The photon can produce an electro ...
... 1. Photoelectric effect: photon is completely absorbed, electron is ejected 2. Photon may be totally absorbed by electron, but not have enough energy to eject it; the electron moves into an excited state 3. The photon can scatter from an atom and lose some energy 4. The photon can produce an electro ...
Unit 3 - Chemistry
... • The sum of the number of neutrons and the number of protons in a given nucleus is called the _______________. • _______________ • atoms with the same number of protons but different numbers of _______________. • Elements on the periodic table are the most common _______________ of those substance ...
... • The sum of the number of neutrons and the number of protons in a given nucleus is called the _______________. • _______________ • atoms with the same number of protons but different numbers of _______________. • Elements on the periodic table are the most common _______________ of those substance ...
presentation - WordPress.com
... The tendency of an atom to attract the shared pair of electrons towards itself is known as electronegativity. Electronegativity difference affect bond type and explains which type of molecules formed; polar or non polar molecules. ...
... The tendency of an atom to attract the shared pair of electrons towards itself is known as electronegativity. Electronegativity difference affect bond type and explains which type of molecules formed; polar or non polar molecules. ...
Ionization
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes. Ionization can result from the loss of an electron after collisions with sub atomic particles, collisions with other atoms, molecules and ions, or through the interaction with light. Heterolytic bond cleavage and heterolytic substitution reactions can result in the formation of ion pairs. Ionization can occur through radioactive decay by the internal conversion process, in which an excited nucleus transfers its energy to one of the inner-shell electrons causing it to be ejected.