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When did bohr's develop his atomic theory?
Niels Bohr developed his atomic theory in 1913. This theory introduced the idea that electrons orbit the nucleus in specific energy levels, which was a major advancement in understanding the structure of atoms.
Did Bohr improved upon Dalton's atomic theory?
Yes, Bohr's atomic theory built upon Dalton's atomic theory by introducing the concept of energy levels and electrons moving in specific orbits around the nucleus. He also added the idea of quantized electronic transitions, which helped explain the spectral lines observed in atomic spectra.
How does the atomic radius change from left to right in Groups 1 and 2?
The atomic radius increases from top to bottom in groups 1 and 2 of the modern periodic table. This happens because the number of energy shells increase and are occupied by the increasing number of electrons. As the subsequent shells are completed they are located further from the nucleus due to the decreasing force of attraction between nucleus and the electrons. This leads to an increase in atomic radius. == == Atomic radius is a result of the completion of orbitals as atoms get heavier by adding neutrons and protons to the nucleus. The larger nucleus can hold more electrons. The cloud of electrons determines the atomic radius. Each completed orbital (S,P,D or F) takes up room. The higher orbitals have a greater radius . Unlike the old Bohr theory of atoms (little electrons in orbits around the nucleus), the new probability distribution interpretation of the electrons leads to spherical or hourglass shaped volumes.
What part of Dalton's theory of was disproved when scientists discovered that atoms contain protons electrons and neutrons?
John Dalton believed that atoms were the fundamental building blocks of matter, and that they could not be created, destroyed or split. However he was wrong, because atoms are made out of subatomic particles such as Protons, Neutrons and Electrons - and later still, it was discovered Protons and Neutrons too are made of even smaller particles.
What is an area around an atom that can hold only a set number of electrons?
AtomElectronsElectronselectronselectronsElectronsElectronselectrons
How are materials divided into conductors insulators and semi conductors according to the atomic theory?
by their ability to accept electrons
According to modern atomic theory what can move from one energy level to another?
According to modern atomic theory, electrons can move from one energy level to another within an atom. This movement between energy levels is responsible for the emission or absorption of electromagnetic radiation in the form of photons.
The most recent advancements in atomic theory have?
Mainly focused on electrons
What best describe electrons located in atoms?
This is the atomic orbitals theory.
How is the modern atomic theory different from Daltons atomic theory?
In Dalton's theory the electrons in the atom travel in a one layered orbital rotation around the nucleus, in the modern, or electron cloud, theory the electrons travel in a more radical patterned movement while still staying in their respected energy levels.
Michael Faraday contribution on the atomic theory?
he helped the creator of electrons and the studier of chemistry
How was Thomsons atomic theory different from Rutherfords atomic theory?
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
How was Thomson's atomic theory differ from Rutherford atomic theory?
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
What did Friedvich Hund contribute to atomic theory?
Friedrich Hund was a German physicist known for his work on understanding atomic structure, particularly the arrangement of electrons within atoms. He developed the "Hund's rules," which describe how electrons fill orbitals in atoms and molecules. These rules helped to explain and predict the behavior of electrons in atoms, advancing our understanding of atomic theory.
What year did Niels Bohr proved his atomic theory?
Niels Bohr published his atomic theory in 1913...which applied Max Planck's quantum theory to Rutherford's idea of a nuclear structure.... adding the idea of electrons traveling in orbitsaround the atom's nucleus.
What is is the formula for the atomic theory for 13 protons 10 electrons and 14 neutrons?
Al 3+
Are atoms changed in chemical reactions according to Dalton's Atomic Theory?
According to Dalton's Atomic Theory, atoms are not changed in chemical reactions. Instead, they are rearranged or combined with other atoms to form new compounds. The atoms themselves remain the same, with no change to their identity or fundamental properties.
