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Electrons = e-

Charge of an electron = -1.6 x 10^-19

Relative charge of an electron = 1-

Relative mass of an electron = 1/1840 of a proton

Actual mass of an electron = 9.11 x 10^-28

Protons = P+

Charge of a proton = +1.6x10^-19

Relative charge of a proton = +1

Relative mass of a proton = 1

Actual mass of a proton = 1.67 x 10^-24

Neutrons = n^0

Charge of a neutron = 0

Relative charge of a neutron = 0

Relative mass of a neutron = 1

For End of Chem. 2 Or End of First Year of Chem.

American Chemical Society Local Exam + Answer Sheet For Years:

2018

2017

2016

2015

General Chemistry by Colby.edu:

Practice Exam 1

Practice Exam 1 Answers

Practice Exam 2