1.What is the charge and mass of an electron?what is a periodic table and explain the groups in a periodic table.
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Answer: charge= negative
periodic table is the table of all the elements in science eg: iron,
etc:,.
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Explanation: Charge of an electron is negative it is equal to 1.6 X 10 ^-19
periodic table is a system of classification of all elements discovered in order of factors like atomic number mass number and you can also predict the properties of each of the elements by following periodic table trends
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