Aufbau principle - Study guides, Class notes & Summaries
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1030 Final exam 20242025 with 100 correct answers
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1030 Final exam 2024/2025 with 100% correct answers 
Filtration 
Distillation 
Chromatography (paper) 
Intensive Properties 
Extensive Properties 
Atomic Number and Mass Number 
Isotopes 
Mole 
Avogadro's Number (NA) 
Electrostatic energy 
Quantized energy (Max Planck) 
Heisenberg's Uncertainty Principle 
Principal Quantum Number (n) 
Angular Momentum Quantum Number (l) 
Magnetic Quantum Number (ml) 
Electron Spin Quantum Number (ms) 
Degenerate orbitals 
Aufbau principle 
Pauli Exclusion Prin...
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TEST BANK FOR ORGANIC CHEMISTRY WITH BIOLOGICAL TOPICS 6th EDITION ISBN : 9781260325294 ALL CHAPTERS INCLUDED.
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TEST BANK FOR ORGANIC 
CHEMISTRY WITH 
BIOLOGICAL TOPICS 6th 
EDITION 
ISBN : 9781260325294 ALL 
CHAPTERS INCLUDED. 
Chapter 1 
1 
MULTIPLE CHOICE QUESTIONS 
Topic: Atomic Orbitals 
1. In quantum mechanics a node (nodal surface or plane) is: 
A) a place where Ψ is negative. 
B) a place where Ψ is positive. 
C) a place where Ψ = 0. 
D) a place where Ψ 
2 
is large. 
E) a place where Ψ 
2 
is negative. 
Ans: C 
Topic: Atomic Orbitals, Molecular Orbitals 
2. When the 1s orbitals of two hydroge...
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ACS Chemistry 101 & 102 Final Exam Review 44 Questions with Verified Answers,100% CORRECT
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ACS Chemistry 101 & 102 Final Exam Review 44 Questions with Verified Answers 
 
What is the difference between a homogeneous and heterogeneous mixture? 
 
Can they be separated? - CORRECT ANSWER A homogeneous mixture is a uniform composition throughout whereas a heterogeneous mixture has other substances. 
 
They can be separated but through physical processes. 
 
What is the difference between a physical and chemical property? 
 
Physical vs chemical change? - CORRECT ANSWER A physical prope...
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Edexcel Chemistry A Level: Guide Questions with Complete Answers. Verified for New Updates
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Mass spectrometry 
using lasers to ionise atoms into cations, then measure the abundance and mass using their mass-tocharge ratios 
Mass to charge ratio 
the mass of an ion divided by its charge (usually +1 in mass spectrometry) 
units: m/z 
relative atomic mass 
the average mass of an atom of an element relative to 1/12 of an atom of the isotope C-12 
relative isotopic mass 
the relative mass an atom of an isotope relative to 1/12 of the mass of a C-12 atom 
relative molecular mass 
the relati...
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2024 ACS EXAM review (All Answered)
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Rutherford's Gold Foil Experiment correct answers proposed that atoms consist of a tiny, massive, positive nucleus surrounded by electrons 
 
nucleus correct answers contains all the positive charge and nearly all the mass of the atom 
 
James Chadwick correct answers discovered the neutron 
 
cathode rays correct answers move from negative electrode to positive electrode (like electrons in a voltaic cell) 
 
Thompson's Cathode Ray Experiment correct answers discovery of the electron (also the...
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General Chemistry Unit 1 Questions and Answers | Latest Update | 2024/2025 | Already Passed
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General Chemistry Unit 1 Questions and 
Answers | Latest Update | 2024/2025 | 
 
Already Passed 
 
What is the significance of the atomic number in determining the identity of an element? 
 The atomic number represents the number of protons in the nucleus of an atom, which 
defines the element and its position on the periodic table. 
 
How do isotopes of an element differ from one another? 
 Isotopes of an element have the same number of protons but different numbers of neutrons, 
resulting in d...
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Abeka chemistry quiz 12 fully solved exam study guide 2024-2025(100% accurate expert solutions)download to pass
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Magnetic quantum number 
The quantum number that describes the orientation of an orbital in space. 
 
 
 
Principle quantum number 
The quantum number that describes the shell in which an election is located. 
 
 
 
 
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Pauli exclusion principle 
What principle states has no two electrons in an atom that have the same four quantum numbers. 
 
 
 
Hund's Rule 
This states th...
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CHM 2210 Organic Chemistry TEST BANK
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MULTIPLE CHOICE QUESTIONS 
Topic: Atomic Orbitals 
1. In quantum mechanics a node (nodal surface or plane) is: 
A) a place where Ψ is negative. 
B) a place where Ψ is positive. 
C) a place where Ψ = 0. 
D) a place where Ψ2 
 is large. 
E) a place where Ψ2 
 is negative. 
Ans: C 
Topic: Atomic Orbitals, Molecular Orbitals 
2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, 
how many molecular orbitals are formed? 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
Ans: B 
Topic: A...
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MCGRAW HILL CHEMISTRY CHAPTER 8 PRACTICE TEST QUESTIONS WITH 100% CORRECT DETAILED ANSWERS GRADED A+
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MCGRAW HILL CHEMISTRY CHAPTER 8 PRACTICE TEST QUESTIONS WITH 100% CORRECT DETAILED ANSWERS GRADED A+ 
Effective nuclear charge - Answer-Reduced by shielding of lower electrons 
 
Aufbau Principle - Answer-Electrons placed in lowest energy sublevel 
 
Hund's rule - Answer-When orbitals of equal energy are available, the lowest energy configuration has the maximum number of unpaired electrons with parallel spins (put paired electrons at lowest possible place) 
 
4th column and 9th column d-bloc...
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MTL200 - Material Sciences and Engineering. Exam Questions With Verified Answers
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MTL200 - Material Sciences and 
Engineering. Exam Questions With Verified 
Answers 
Chapter 1: 
1. What is a composite? 
2. What are advanced material? 
3. Describe Metals: 3 points 
4. Describe Ceramics and give an example 
5. What is a traditional Ceramic? 
6. What is a polymer? 
+History question - answer1. Composed of 2 or more individual materials ( material + 
polymer + ceramic) 
2. Materials used in technology: semi-conductors, biomaterials, smart-materials, nano-materials 
3) 
1. One or ...
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