The quantum model is regarded as the most current model to explain the composition of an atom. The Bohr model and the quantum model are fundamentally different in that the former explains the particle behavior of an electron while the latter explains its dual nature as a wave and a particle.
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What is the Bohr Model?</h3>
The Bohr model of the atom was put forth by Neil Bohr in 1915. It was developed by altering Rutherford's atomic model. Rutherford demonstrated how a positively charged nucleus is surrounded by negatively charged electrons in his nuclear model of an atom.
The Bohr hypothesis modified the atomic structure model by explaining that electrons move in fixed orbitals (shells) and not anywhere in between. He also demonstrated the fixed energy of each orbit (shell). Bohr added electrons and their many energy levels to Rutherford's revised concept of the atom's nucleus.
In Bohr's theory, there is a tiny, positively charged nucleus that is surrounded by negatively charged electrons that orbit the nucleus. According to Bohr, an electron that is farther from the nucleus has more energy than an electron that is closer to the nucleus.
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Answer:
This law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases, when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand.
Explanation:
Answer:
e. 81.0%
Explanation:
Morphine has Molar mass = 285.34 g/mol
Also, number of males of Morphine = Number of moles of HCl
(At equivalence point )
Now, number of moles of HCl = Molarity × volume
=0.01 mol × 2.84×10^(-3) L
= 2.84×10^(-5) mol
therefore number of moles of morphine= 2.85×10^(-5)
Mass of Morphine= No. of moles × molar mass
= 2.84×10^(-5)×285.34 g/mol
= 0.0081 g
= 8.1 mg
therefore
percentage of morphine = mass of morphine/ mass of powder×100%
= 8.1/10×100% = 81.0%
hence option e is correct.
The answer to your question is A
Yes because he presumably wrote the procedure while his assistants just did grunt work