advance chemistry 1901 test
test with answers for chemistry 1901, advanced chemistry. 2011 edition
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Answers to CHEM1901 Quiz 1
1. When working out the decay product, the mass number (A ) and the atomic number (Z) must balance.
An electron has a mass number of 0 and has a charge of -1:
The starting mass number is 66 so loss of an electron (mass number 0) will not change the mass: A = 66.
The starting atomic number is 28 so loss of an electron (charge -1) will increase the atomic number to 29: Z = 29
corresponding to Cu in the Periodic Table.
The correct answer is C.
2. The total mass on the le...
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