atomic-structure

Related Questions

• Cathode rays are

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• The number of electrons in ${[_{19}^{40}K]^{ - 1}}$ is

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• The nucleus of an element contain $9$ protons. Its valency would be

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• The atomic number of an element is $35$ and mass number is $81$. The number of electrons in the outer most shell is

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• An electron has kinetic energy $2.8 \times {10^{ - 23}}J$. de-Broglie wavelength will be nearly $({m_e} = 9.1 \times {10^{ - 31}}kg)$

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