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Structure of Atom questions and answers

Browse questions about Structure of Atom, with answers and explanations.

48 questions

Questions

QUESTION

Which is the most specific description of the atomicity of a white-phosphorus molecule (P₄)?

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Which electrostatic theory treats ligands as charges or dipoles and explains geometry-dependent splitting of the metal d-orbital energies in coordination complexes?

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Which of the following pairs of 'elements - valency' is correct? I. Boron - 2 II. Fluorine - 3

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Which of the following statements is NOT correct regarding Rutherford's nuclear model of an atom?

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For a sample of a monatomic element, which expression gives the number of atoms in terms of the sample mass, molar mass and Avogadro…

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Which of the following pairs of 'number - composition' is correct? I. Atomic number - number of protons II. Mass number - Sum of…

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Consider the following statements: 1. Ernest Rutherford used gold foil approximately 1000 atoms thick for his alpha scattering experiment. 2. The experiment showed that…

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Assertion (A): The space-filling model emphasizes the relative size of each atom based on its van der Waals radius. Reason (R): The van der…

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Consider the following statements: 1. The Gold Foil Model was developed by J.J. Thomson in 1898. 2. The Plum Pudding Model describes electrons embedded…

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Consider the following statements. 1. One mole contains exactly 6.02214076×10²³ specified elementary entities. 2. Planck’s constant relates the energy of a photon to its…

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Assertion (A): A neutral sodium atom in its ground state has the shell configuration 2,8,1. Reason (R): A neutral sodium atom has 11 electrons,…

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Which set of quantum numbers is allowed for an electron in a 4f orbital?

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Identify the correct statement about first ionisation enthalpy. Statement A: It is the molar energy required to remove the most loosely bound electron from…

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Consider the following statements: 1. London dispersion forces are a type of Van der Waals force found in halogens, noble gases, and other non-polar…

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Consider the following statements: 1. An electron has a negative charge, a proton has a positive charge, and a neutron is electrically neutral. 2.…

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Which of the following statements are included in Dalton’s atomic theory? I. Matter consists of extremely small particles known as atoms that take part…

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Using the rounded atomic masses H = 1 and O = 16, what is the mass ratio of hydrogen to oxygen in water (H₂O)?

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Rutherford’s atomic model failed mainly because it could not account for:

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In the Bohr model of a hydrogen-like atom, how does the energy gap between consecutive levels change as the principal quantum number n increases?

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According to Bohr's model, what is the significance of an electron transition from a higher energy orbit to a lower energy orbit?

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