1. Atoms with completely filled outermost shells are chemically stable and less reactive because they have achieved a configuration similar to noble gases, making them less likely to form chemical bonds.

    Atoms with completely filled outermost shells are chemically stable and less reactive because they have achieved a configuration similar to noble gases, making them less likely to form chemical bonds.

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  2. According to the Bohr-Bury scheme, the outermost shell of an atom can accommodate up to 8 electrons in most cases, corresponding to the octet rule and achieving a stable electron configuration.

    According to the Bohr-Bury scheme, the outermost shell of an atom can accommodate up to 8 electrons in most cases, corresponding to the octet rule and achieving a stable electron configuration.

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  3. Valence electrons are the electrons in the outermost shell of an atom. They determine the atom's chemical properties and reactivity by participating in chemical bonding with other atoms.

    Valence electrons are the electrons in the outermost shell of an atom. They determine the atom’s chemical properties and reactivity by participating in chemical bonding with other atoms.

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  4. Bohr's model introduced the concept of quantized energy levels in atoms, explaining atomic spectra and electron behavior. It laid the foundation for understanding electron orbits and provided a framework for subsequent models, enhancing our comprehension of atomic structure and behavior.

    Bohr’s model introduced the concept of quantized energy levels in atoms, explaining atomic spectra and electron behavior. It laid the foundation for understanding electron orbits and provided a framework for subsequent models, enhancing our comprehension of atomic structure and behavior.

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  5. In Bohr's model, only certain orbits are allowed for electrons because they correspond to specific energy levels where the electron's angular momentum is quantized, maintaining stability without radiating energy.

    In Bohr’s model, only certain orbits are allowed for electrons because they correspond to specific energy levels where the electron’s angular momentum is quantized, maintaining stability without radiating energy.

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