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The ratio for an mass-to-charge electron is $5.64 x 10^(-12)$ kg/C. In another experiment, using Millikan's oil drop apparatus, the found the charge on the electron is $1.605 x 10^(-19)$ C. What would be the mass of the electron, according to these data?
And should I multiply $"mass"/cancel"charge"xxcancel"charge"$, I should get an answer of $"mass"$. Let's see: $5.64xx10^-12*kg*cancel(C^-1)xx1.605xx10^-19*cancelC$ $~=1xx10^30*kg$ for a single electron. Well, I got the units of mass, which...
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What is the electron configuration for an excited atom of phosphorous, ready to emit a photon of energy and return to ground state? (configuration has to follow all rules except be in lowest energy)
Phosphorus has $15$. As such its electronic configuration in ground state is $1s^2 2s^2 2p^6 3s^2 3p^3$ The following electronic configurations could be excited states $1s^2 2s^2...
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In an electron microscope, electrons are accelerated to great velocities. What is the wavelength of an electron traveling with a velocity of $7.0 *10^3$ $"km/s"$ ? The mass of an electron is $9.1*10^(-28)$ $"g"$.
You're actually looking for the de Broglie wavelength here, which, as you know, characterizes particles that have mass. The de Broglie wavelength depends on the momentum of the particle,...
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Whats the difference between electron shells, electron levels, and electron orbitals?
Electron orbitals are probability areas of finding an electron in a given space. Different electron orbitals have different mathematical formulas giving different shapes and energy levels for the different electron...
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Which electron is, on average, further from the nucleus: an electron in a 3p orbital or an electron in a 4p orbital?
4p is a higher energy level than 3p
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How do you read the Electron Configuration Periodic Table? For example, if yu wanted to find Mg what would its configuration be?
Subshell notation of magnesium is 2.8.2. We know that magnesium is in Group 2, Period 3. Hence it has an energy level of 3. By doing this, we can...
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How is an electron's outer electron configuration related to its position in the periodic table?
Group 1 A ($ s^1$) has one valence electron. Group 2 A ($ s^2 $) has two . Group 8 A ($ s^2p^6 $) has eight valance electrons....
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A sodium atom has an electron configuration of $1s^2 2s^2 2p^6 3s^1$. If the sodium atom becomes ionized, its new electron configuration will be the same as which element?
If the sodium is ionised, the outer $3s^1$ electron is lost, so the configuration becomes $1s^2 2s^2 2p^6$, which is the same as neon, $Ne$.
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What is the electronic configuration of the first row transition metals and their dications? Why is the configuration of $Cr^(2+)$ unusual?
The atomic configuration of the first row transition series is....: $1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^n$ The ionic configuration of the $M^(2+)$ cation is (usually)........ $[1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^n]^(2+)$ The $4s$ electrons are conceived to be removed FIRST...
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The electron configuration for magnesium is $1s^2 2s^2 2p^6 3s^2$. What is the distribution of electrons in the electron shells of a magnesium atom?
You have filled 2 shells, and begun a third valence shell. Is this all you want, or have I missed the point?
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