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NEET UG Atoms and Elements: related Chemistry practice

The practice bank below covers broader Chemistry topics; a dedicated Atoms and Elements lesson is not available yet.

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Chemistry questions and exercises with answers

Showing questions 1–5 of 5.

Mark the sub-atomic boardRead the answer and worked solution →Match the finder to the findingRead the answer and worked solution →Fill the subshells in orderRead the answer and worked solution →Catch what Bohr could not explainRead the answer and worked solution →Complete the n = 3 shellRead the answer and worked solution →

Worked practice questions

Mark the sub-atomic board

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Clues and terms
  1. Clue
    Negative particle in cathode rays whose charge to mass ratio Thomson measured
    Item
    Electron
  2. Clue
    Lightest positive ion, first got from hydrogen, and its count sets the atomic number
    Item
    Proton
  3. Clue
    Neutral particle Chadwick knocked out of beryllium with alpha particles
    Item
    Neutron
  4. Clue
    Tiny central region holding the positive charge and nearly all of the mass
    Item
    Nucleus
  5. Clue
    Atoms of one element that differ only in how many neutrons they carry
    Item
    Isotopes
  6. Clue
    Atoms that share a mass number while their atomic numbers differ
    Item
    Isobars
  7. Clue
    Collective name for the protons and neutrons packed into the core
    Item
    Nucleons
  8. Clue
    Sum of the proton count and the neutron count of one atom
    Item
    Mass number
  9. Clue
    Helium nucleus carrying two positive charges and four units of atomic mass
    Item
    Alpha particle
Instructions
Read each clue and tap the one cell it names, aiming for a line of three.
_Source: syllabus Chemistry Part 1, Ch 2 Structure of Atom_

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Match the finder to the finding

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Matching pairs
  1. Left
    Chadwick
    Right
    Found the neutron by hitting beryllium
  2. Left
    J.J. Thomson
    Right
    Measured the electron charge to mass ratio
  3. Left
    R.A. Millikan
    Right
    Fixed the electron charge by oil drops
Instructions
Tap a name, then tap the discovery it belongs to.
_Source: syllabus Chemistry Part 1, Ch 2 Structure of Atom_

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Fill the subshells in order

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Steps
  1. 1s
  2. 2s
  3. 2p
  4. 3s
  5. 3p
  6. 4s
  7. 3d
  8. 4p
Instructions
Tap the subshells in the order electrons occupy them, lowest energy first.
_Source: syllabus Chemistry Part 1, Ch 2 Structure of Atom_

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More Chemistry topics

Amines and BiomoleculesChemical KineticsAldehydes, Ketones and Carboxylic AcidsEquilibriumRedox ReactionsHydrocarbonsChemical Bonding and Molecular StructureSolutions