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Spot the false statement

Exercise and reference answers

Questions
  1. False statement
    Isotones share the same proton number
    Statements
    1. Isotopes share the same element
    2. Isobars share the same mass number
    3. Isotones share the same proton number
  2. False statement
    Nuclear density depends on the mass number
    Statements
    1. Nuclear density depends on the mass number
    2. Alpha decay emits a helium nucleus
    3. A nucleon is a proton or a neutron
  3. False statement
    The nuclear force is weaker than gravity
    Statements
    1. Half-life halves the number of nuclei
    2. The nuclear force is weaker than gravity
    3. Mass defect is the missing nuclear mass
  4. False statement
    Binding energy per nucleon is nearly eighty MeV
    Statements
    1. The nuclear force saturates with distance
    2. Thermonuclear fusion needs high temperature
    3. Binding energy per nucleon is nearly eighty MeV
Instructions
Two statements are true and one is false. Tap the false one.

Explanation

_Source: syllabus Physics Part II, Ch 13 'Nuclei'_
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