Maximum number of electrons in a subshell can be
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Rutherford carried out experiments in which a beam of alpha particles was directed at a thin piece of metal foil. From these experiments he concluded that
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Electronic configuration of the outer shell of the element Gd with atomic number 64 is
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The neutral atoms of all of the isotopes of the same element have
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Which isotope of hydrogen contains only one proton and no neutron in its nucleus?
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During a chemical reaction, atomic number
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Which metal was used by Rutherford in his alpha-scattering experiment?
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Which of the following mostly accounts for the mass of an atom?
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An atom has a mass number of 37 and atomic number 17. How many protons does it have?
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Who is credited with the discovery of electron?
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