Open Question
Which statements completed with a to e will be true and which will be false? An atom of N compared to an atom of Li has a larger (greater)c. number of protons
2. Atoms and the Periodic Table
Subatomic Particles (Simplified)
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According to the table above, how many electrons are needed to have a combined mass of 1.0465 x 10-25 kg?
A
2.1028 x 1013
B
1.1500 x 105
C
8.8192 x 1025
D
3.2235 x 1022
Verified step by step guidance1
Identify the mass of a single electron from the table: 0.00091 x 10^-27 kg.
Determine the total mass required: 1.0465 x 10^-25 kg.
Set up the equation to find the number of electrons needed: (number of electrons) x (mass of one electron) = total mass.
Substitute the known values into the equation: (number of electrons) x (0.00091 x 10^-27 kg) = 1.0465 x 10^-25 kg.
Solve for the number of electrons by dividing the total mass by the mass of one electron: number of electrons = (1.0465 x 10^-25 kg) / (0.00091 x 10^-27 kg).
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