Interpretation:
Interpret the energy change Δ E (kJ/mol) when a-particle is emitted from
Concept introduction:
In an atom, three sub-atomic particles are present which are arranged in a certain way to make the atom stable. The nuclear attraction force works between electrons and protons due to opposite charges. The force between protons and neutrons holds these particles together. It can be measured by measuring the amount of energy necessary to break these forces.
It can be calculated with the help of Einstein’s mass − energy equation:
The mass defect (
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Chapter 20 Solutions
LCPO CHEMISTRY W/MODIFIED MASTERING
- A B58 atom (mass = 8.0246 amu) decays into B48 atom (mass = 8.0053 amu) by loss of a + panrticle (mass = 0.00055 amu) or by electron capture. How much energy (in millions of electron volts) is produced by this reaction?arrow_forward9-14 Write the symbol for a nucleus with the following components: (a) 9 protons and 10 neutrons (b) 15 protons and 17 neutrons (c) 37 protons and 50 neutronsarrow_forward
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