https://padlet.com/annah102/ll97ylpeq574vwzt en-us 2023-10-03 12:29:04 UTC 2023-10-03 20:17:30 UTC hello@padlet.com https://padlet.net/icons/png/1f914.png annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730843741 John Dalton was an incredibly intelligent individual hailing from England who made significant contributions to the fields of chemistry, physics, and meteorology. He developed a groundbreaking concept known as atomic theory, which was revolutionary in its time. Additionally, he possessed personal experience with color blindness, and conducted extensive research on the subject. In fact, his extensive work on color blindness led to the colloquial term "Daltonism" being used to describe this condition.]]> 2023-10-03 19:29:46 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730843741 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730848953 The Solid Sphere Model of John Dalton is the first model to propose the idea of atoms. Dalton proposed that atoms were the smallest unit of matter that could exist. Atoms were also thought to be indivisible and to be made up of spherical shapes. There was no idea of a nucleus or electrons at this point. This model contributed to our understanding of the nature of matter and opened up new areas of study. However, the model had limitations in describing chemical reactions and molecular bonds.]]> 2023-10-03 19:34:21 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730848953 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730855982 J.J. Thomson's groundbreaking discovery in atomic physics changed the course of science forever. He proposed and provided experimental proof that the atom, which was previously believed to be the fundamental unit of matter, can be divided. This discovery opened up new possibilities for further breakthroughs in our understanding of the basic building blocks of matter. Thomson's work paved the way for many other scientists to expand on his findings and deepen our understanding of the world around us.]]> 2023-10-03 19:40:55 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730855982 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730858632 The Plum Pudding Model is a modified version of the Solid Sphere Model proposed by J.J. Thomson in 1911. Thomson proposed that the atom had a positive core with electrons distributed throughout the interior, similar to the way plums are randomly distributed in a pudding. The model was based on experimental results showing that positive charges were found at the center of an atom. This model contributed to our understanding of the structure of atoms, however, it had limitations in describing the chemical properties of atoms.]]> 2023-10-03 19:43:06 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730858632 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730865920 Ernest Rutherford is considered the "father of nuclear physics" and is widely regarded as one of the greatest experimentalists of all time. He was a brilliant scientist who made many groundbreaking discoveries in the fields of radioactivity and nuclear physics. One of his key contributions was the identification of alpha and beta rays, which helped to establish the rules of radioactive decay. Rutherford also recognized alpha particles as helium nuclei, which provided further insight into the nature of atomic structure. Overall, his work has had a major impact on our understanding of the universe at its most fundamental level.]]> 2023-10-03 19:49:36 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730865920 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730869966 Ernest Rutherford's groundbreaking Nuclear Model, which he proposed in 1911, revolutionized our understanding of atoms. Rutherford's observations of alpha particle scattering led him to propose that there was a small, dense, positively charged nucleus located at the center of an atom, surrounded by negatively charged electrons. This model opened up a wider area of research on atoms and contributed to our understanding of nuclear physics. However, the model had limitations in describing the chemical properties of atoms, which were later improved upon by Niels Bohr's model. Nevertheless, Rutherford's Nuclear Model remains a critical milestone in the history of atomic theory, and its impact is still felt in modern physics today.]]> 2023-10-03 19:53:29 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730869966 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730875888 Niels Henrik David Bohr was a renowned physicist who was born in Denmark in 1885. He is known for his invaluable contributions to the field of atomic structure and quantum theory, which have greatly impacted our understanding of the fundamental nature of matter. His exceptional work in this field earned him the Nobel Prize in Physics in 1922. Additionally, Bohr was also a philosopher and a strong advocate for scientific research, which he believed was essential for advancing human knowledge and understanding. His legacy continues to inspire and influence scientists and researchers around the world.]]> 2023-10-03 19:59:04 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730875888 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730878492 Niels Bohr's Planetary Model is a modified version of the Nuclear Model and is a qualitative model of the electronic structure of atoms. Bohr proposed that electrons are confined to specific energy levels, similar to the way planets are confined to specific orbits, and that electrons were only allowed to transition between energy levels by emitting or absorbing photons of specific wavelengths. This model contributed to our understanding of the electronic structure of atoms and it also provided an explanation for the spectroid lines observed in atomic spectra. However, the model had limitations in describing the behavior of atoms in chemical reactions.]]> 2023-10-03 20:01:47 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730878492 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730890581 Erwin Schrödinger, born on August 12, 1887, was an Austrian-Irish physicist who played a key role in the development of quantum theory. He is widely regarded as one of the most influential physicists of the 20th century and was awarded the Nobel Prize in Physics in 1933 for his groundbreaking work in the field. Schrödinger's contributions to quantum mechanics include the development of the famous "Schrödinger equation" which describes the behavior of quantum particles and remains a fundamental tool in modern physics. His work also helped to establish the wave-particle duality principle, which states that all particles have both wave-like and particle-like properties. Schrödinger's legacy continues to inspire and inform scientific research to this day.]]> 2023-10-03 20:13:29 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730890581 annah102 https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730893277 The Quantum Mechanical Model is a widely accepted model that explains the behavior of subatomic particles. The model proposes that particles can only exist in certain orbits and that these orbits are dependent on their energy level. The model was based on the principles of quantum mechanics and contributed to our understanding of the behavior of subatomic particles. The model also provided an explanation for the emission and absorption spectroid lines observed in atomic spectra. However, the model had limitations in describing certain aspects of chemical reactions and the behavior of atoms in bulk matter.]]> 2023-10-03 20:16:20 UTC https://padlet.com/annah102/ll97ylpeq574vwzt/wish/2730893277