Niels bohr - Study guides, Class notes & Summaries

Chemistry Chapter 5 Quantum Mechanics Who developed the idea of electron energy levels? Niels Bohr What two conclusions did Bihr come to? 1: an electron can only move a certain distance from the nucleus 2: an electron can only move at a certain speed Schrodinger, Heisinberg, and de Broglie developed a theory th at stated... The motion of an electron is not a definite path. You cannot determine it's position and it's momentum. Space Orbital The highly probable location of an ...

What is the equation linking mass moles and MR? Mass=moles * MR What is the definition of Ar (relative atomic mass)? The average mass of an atom of an element compared to the mass of one twelfth of carbon 12. What does Mr stand for? Relative molecular mass Define relative isotopic mass. The mass of an isotope of an element compared to the mass of one twelfth of the mass of carbon 12 What is the relative mass of an electron? 1/1840 What is an isotope? Isotopes of an element are ato...

GCSE EDEXCEL TRIPLE SCIENCE CHEMISTRY PAPER 2 2024/2025 QUESTION PAPER ALREADY PASSED What does 'aq' mean? - answer Aqueous - it is dissolved in water Water - formula - answer H20 Ammonia - formula - answer NH3 Carbon Dioxide - formula - answer CO2 Hydrogen - formula - answer H2 Chlorine - formula - answer Cl2 Oxygen - formula - answer O2 Ammonium (ion) - formula - answer NH4 (+) Hydroxide (ion) - formula - answer OH (-) Nitrate (ion) - formula - answer NO3 (-) Carbonate (ion) -...

GCSE EDEXCEL TRIPLE SCIENCE CHEMISTRY PAPER 2 2024/2025 QUESTION PAPER ALREADY PASSED What does 'aq' mean? - answer Aqueous - it is dissolved in water Water - formula - answer H20 Ammonia - formula - answer NH3 Carbon Dioxide - formula - answer CO2 Hydrogen - formula - answer H2 Chlorine - formula - answer Cl2 Oxygen - formula - answer O2 Ammonium (ion) - formula - answer NH4 (+) Hydroxide (ion) - formula - answer OH (-) Nitrate (ion) - formula - answer NO3 (-) Carbonate (ion) -...

Quantum Mechanics Grade 12 Review Guaranteed Answers Who introduced the idea that particles could behave like waves? ️Louis de Broglie What theory did Erwin Shrodinger produce? ️the electron can only have certain quantized energies because of the requirement for only whole number of wavelengths for the electron wave (nodes) Who and what discovered the Heisenberg Uncertainty Principle? ️Werner Heisenberg discovered the principle that states it is impossible to simultaneously know ...

4.1: ATOMIC STRUCTURE Earlier in this course, we explored a very elementary view of atomic structure. We learned about protons, neutrons, and electrons (the three elementary particles that comprise an atom) and their properties. In this module, we will study these particles in detail and learn how their presence and arrangement determines the properties of all matter. The Electron During the 1800s, a number of scientists, including Sir Humphrey Davy, Michael Faraday, R. A. Milligan, G. J...

FTCE Middle Grades Science 5-9 Exam 406 Questions with Verified Answers Which of the properties listed below is a characteristic of a liquid but not of a gas? A. It has the ability to flow. B. It maintains its volume in an open container. C. Its molecules are constantly in motion. D. Its volume varies depending on temperature. - CORRECT ANSWER B A 0.100 m3 chamber is filled with oxygen gas at standard conditions (101 kPa at 273 k). Assuming ideal conditions and behavior, what will be t...

MTTC Integrated Sciences 094 Physical Sciences Actual Exam With Verified Solutions Plasma - CORRECT ANSWER-ionized gas that has some electrons that are described as free because they are not bound to an atom or molecule specific gravity - CORRECT ANSWER-measurement of the density of substances in a liquid compared to water atomic theory - CORRECT ANSWER-a theory that states that all matter is composed of tiny particles called atoms. John Dalton - CORRECT ANSWER-developed modern ato...

Plasma - Answer ionized gas that has some electrons that are described as free because they are not bound to an atom or molecule specific gravity - Answer measurement of the density of substances in a liquid compared to water atomic theory - Answer a theory that states that all matter is composed of tiny particles called atoms. John Dalton - Answer developed modern atomic theory negative ion - Answer anion, gains electrons positive ion - Answer cation; loses electrons ionic bon...

Describe the relationship between the frequency, wavelength, and velocity (speed) of a wave. - AnswerThe more times the wave is passing through a point in space = a higher frequency, the higher frequency creates a smaller wavelength, which is why the smallest wave is a gamma wave, it has the highest frequency and the shortest distance between waves, the velocity can be measured in m/s and is composed of frequency and wavelength Calculate any one (frequency, wavelength, or velocity) given the...