Electron affinity Study guides, Class notes & Summaries

1. Question: What is the wavelength of radiation that has a frequency of 5.39 × 1014 s–1? 2. Question: What is the wavelength of a photon of red light (nm) whose frequency is 4.64 x 1014 Hz? 3. Question: Which one of the following sets of quantum numbers is not possible? 4. Question: In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus: 5. Question: Calculate the wavelength of a neutron that has a velocity of 250 cm/s...

IB chemistry HL Latest Version Graded A+ exothermic reaction heat is released by the system ΔΗ<0 endothermic reaction heat is absorbed by the system ΔΗ>0 standard enthalpy change of reaction(ΔΗ) the heat energy transferred under standard conditions (pressure-101.3 kPa, temperature- 298 K) combustion and neutralization are exothermic processes average bond enthalpy the energy required to break one mole of a certain type of bond in the gaseous state averaged acro...

In which set of elements would all members be expected to have very similar chemical properties? -P, Se, I -Br, I, At -Ne, Na, Mg -Cl, Br, Na -Si, As, Te correct answer: Br, I, At Of the following elements, which have been shown to form compounds? helium neon argon krypton xenon -xenon, krypton, and argon -xenon only -xenon and krypton -xenon and argon -None of the above can form compounds correct answer: xenon, krypton, and argon Which of the following correctly re...

Isotopes - Same # protons, different # of neutrons 10 5 B (Mass #/Atomic Mass) - p=5 N=10-5=5 e=5 Orbital diagrams - n=# in orbital diagram l: s=0 p=1 d=2 f=3 Ml= timeline w/ 0 Spin: always +1/2 and -1/2 energies affecting atomic orbitals - nuclear charge shielding (reduced full nuclear charge to Zeff) Atomic radus - decreases b/c INCREASED electrostatic attraction Electron affinity - -the energy change when an electron is accepted by atom in gases state (anion formed) -smaller ele...

1. Question: What is the wavelength of radiation that has a frequency of 5.39 × 1014 s–1? 2. Question: What is the wavelength of a photon of red light (nm) whose frequency is 4.64 x 1014 Hz? 3. Question: Which one of the following sets of quantum numbers is not possible? 4. Question: In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus: 5. Question: Calculate the wavelength of a neutron that has a velocity of 250 cm/s...

Biology 3221A Biochemistry Final Exam Q&A- Rush University Which of the following single-base DNA gene coding changes is least likely to significantly affect the function of resulting protein? (Harper pages 361-363) A. Missence mutation resulting to histidine-to-glutamic acid change B. Silent mutations in the third codon base C. Frameshift mutation D. Nonsense mutation 2. Which of the following is a property of enhancer elements? (Harper pages 384-385) A. They do not work located downs...

Inorganic Chemistry Exam 3 With 100% Correct Answers 2024 What is electronegativity? - answerhow hard an element pulls on electrons in a bond electronegativity is related to? - answerdipole moments, ionization energy, electron affinity, Zeff, and radii what are the four different types of bonds? - answerionic, covalent, polar covalent, and metallic covalent what is the Mulliken equation? - answerX=EA+IE/2 what is the Mulliken equation used for? - answerto calculate electronegativity from...

Cation vs Anion - ANSWERCation- positive charge Anion- negative charge Electromagnetic Spectrum - ANSWER(Short λ) Gamma, Xray, Ultra Violet, Visible, Infrared, Micro, Radio (Long λ) Frequency vs Wavelength - ANSWERLong Wavelength (λ)→Low Frequency (v) Short Wavelength (λ)→High Frequency (v) Principle Quantum Number - ANSWER(n) - size of orbital 1,2,3,4... Angular Moment Quantum Number - ANSWER(l) - Shape of orbital 0,1,2,3...n-1 Magnetic Quantum Number - ANSWERM₁...

Moving across a row from left to right, ionization energy generally ___. - -increases Moving across a row from right to left, ionization energy generally ___. - -decreases Electron affinity generally ___ as we move up the periodic table. - -increases Electron affinity generally ___ as we move down the periodic table. - -decreases Electron affinity generally ___ as we move right along the periodic table. - -increases Electron affinity generally ___ as we move left along the periodic table. -...

Study Guide for AP Biology Unit 1 Test Exam and 100% Correct Solutions water - CORRECT ANSWER--polar molecule -polar colvalent bonds -oxygen end is partial negative and the hydrogens have a partially positive end -cohesive polar covalent bonds - CORRECT ANSWER--opposite ends of the molecule have opposite charges cohesion - CORRECT ANSWER--H bonding between H2O creates it (sticky) -allows for the movement of water against gravity -high surface tension -water moves up a tree by transp...