Schrodinger - Samenvattingen, Notities en Examens

Chemistry final review questions and answers well illustrated. intensive properties - correct ds on what type of matter (ex: denisty, composition, atomic structure) extensive properties - correct ds on how much matter you have (amount of matter), ex: mass, volume, shape homogenous mixtures - correct phase (part that you can see), individual parts not visible (ex: solutions) heterogenous mixture - correct re does not appear the same throughout (ex: colloids, suspeniso...

Schrodinger (1925) Continued upon Bohr's findings to determine where electrons are typically found. Heisenberg (1927) Created the heisenberg uncertainty principle because you never can predict where the electron is. (Breaking Bad) De Broglie (1924) Electrons act like waves around the atom. Niels Bohr (Bohrbit) (1913) Electrons can orbit the nucleus in certain special orbits at different energy levels around the nucleus. Earnest Rutherford (foil) (1910) Fired beam of alpha particles at thin ...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

University of Washington - Department of Chemistry Chemistry 453 Homework Assignment 10 Problem 1 The longest wavelength absorption band of chlorophyll a occurs at 680 nm. a. Calculate the energy of a photon of that wavelength in J, eV and kJ/Einstein a) x J photon x m hc x Jxsx x m s E 2.92 10 / 6.8 10 6.62 10 3 10 / 19 7 34 8 − − − Δ = = = λ 2.92x10 J / photonx1eV /1.602x10 J 1.82eV / photon 19 19 = = = − One Einstein corresponds to one mole of photons, so the ener...

Law of Conservation of Mass Matter is neither created nor destroyed it is only rearranged Law of Definite Proportions Atoms must combine in whole number ratios 00:30 01:39 Law of Multiple Proportions Atoms can combine in different whole number ratios Law of Electrical Charges 2 types of charges: opposites attract and like charges repel Heisenberg Uncertainty Principle The more precisely you know the location of the electron the less precisely you know t...

Chemistry - Structure and Properties Exam Questions With Correct Answers. What were the two problems with Bohr's model of the atom? - answerIt could only explain the line spectrum of hydrogen and not any other elements, and it wrongly suggested that the electron is a particle whose exact position and velocity could be specified at any time. How did Erwin Schrodinger contribute to the model of the atom? - answerIn 1924, he proposed a series of mathematical equations to calculate the probab...

What determines which energy gets absorbed? - Answer Chemical structure Louise de Broglie proposed that electrons had what properties? What experiment lead to this discovery? - Answer both wave and partical / the double slit experiment What is it called when electron waves collapses on itself? - Answer destructive interference What does the Heisenberg Uncertainty Principle state? - Answer it is imposible to know the exact momentum and position of an electron What describes the electrons l...

AQA AS Physical Chemistry 2024 Exam Questions And Answers (1) Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. New model named ...

Why is electronic structure important? - Answer All of chem is governed by transfer of electrons or the arrangement of electrons. How do you study electronic structure? - Answer Use interaction of light with matter to study the electronic structure. Light - Answer a "wave of energy" that consists of oscillating electric and magnetic fields. Frequency - Answer number of complete cycles pf electric fields that pass a given point per second. Wavelength - Answer distance between successive ...

speed Wavelength - correct answer the distance between two consecutive peaks or troughs in a wave. Frequency - correct answer number of waves per second that pass a point in space Equation that uses speed, wavelength, and frequency - correct answer c = (lambda)(V) Equation for the change in Energy - correct answer (delta)E = nhV Quantized - correct answer the discrete untis of size hV. The small packes of energy is called a quantum. Photoelectric Effect...