Question

1. How did Neils Bohr explain the stability of atom?

2. Discuss Bohr-Bury schemed

. 3. State Bohr's atomic model.

4. Define atomic number and mass number & establish the relationship between them.​

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Answer 1

1. Niels Bohr explained the stability of the atoms through the concept of revolution of electrons in different energy levels. The change in the energy of an electron occurs when it jumps from a lower energy level to a higher energy level or vice versa. In this way, energy is not lost and the atom remains stable.
2. The distribution of electrons in different orbits or shells is governed by a scheme known as Bohr bury scheme. The arrangement of electrons in various energy levels of an atom is known as the electronic configuration of the atom. According to this scheme. The third shell can accommodate as many as 18 electrons.
3. In the Bohr model of the atom, electrons travel in defined circular orbits around the nucleus. The orbits are labeled by an integer, the quantum number n. Electrons can jump from one orbit to another by emitting or absorbing energy.
4. Neutral atoms of each element contain an equal number of protons and electrons. The number of protons determines an element's atomic number and is used to distinguish one element from another. Together, the number of protons and the number of neutrons determine an element's mass number.

Answer 2

Answer:

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