1.1 Atomic Structure - pmt.physicsandmathstutor.com
PRACTICE EXAMINATION QUESTIONS FOR Atomic Structure (includes some questions from Periodicity) 1. (a) Complete the following table. Relative mass Relative charge Neutron Electron (2) (b) An atom has twice as many protons as, and four more neutrons than, an atom of 9Be. Deduce the symbol, including the mass number, of this atom. ........................................ ........................................ ........................................ ............. (2) (Total 4 marks) 2. (a) Define the terms (i) mass number of an atom, ........................................ ........................................ ........................................ .. (ii) relative molecular mass.
PRACTICE EXAMINATION QUESTIONS FOR 1.1 ATOMIC STRUCTURE (includes some questions from 1.4 Periodicity) 1. (a) Complete the following table. Relative mass . Relative charge : Neutron ; Electron (2) (b) An atom has twice as many protons as, and four more neutrons than, an atom of 9Be.
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