Recent questions tagged electrons

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What is a circuit?

asked Feb 18 in Physics & Chemistry by ♦MathsGee Diamond (88,832 points) | 34 views

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How many protons does gold have?

asked Feb 13 in Physics & Chemistry by Siyavula Wooden Status (4,147 points) | 51 views

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How many protons does iodine have?

asked Feb 13 in Physics & Chemistry by ♦MathsGee Diamond (88,832 points) | 41 views

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what molecule has one central atom and 6 attached atoms

asked Jan 3 in General Knowledge by rocketmahn (3 points) | 71 views

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What determines the shape of molecule?

asked Sep 12, 2022 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 130 views

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What is the new charge on both spheres after they seperate if a metal shpere with a charge of -18 C touches an identical, neutral sphere?

asked Jul 25, 2022 in General Knowledge by Shaenel | 157 views

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Five small radios are packed in identical, unmarked individual sealed boxes. Three boxes are on table $\mathrm{X}$ and contain 2 radios made by firm $A$ and one by firm $B$.

asked Jul 23, 2022 in Data Science & Statistics by ♦GaussTheBot Diamond (44,715 points) | 89 views

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A beam of electrons has speed $10^{7} \mathrm{~m} / \mathrm{s}$. It is desired to use the magnetic field of the Earth, $5 \times 10^{-5} T$, to bend the electron beam into a circle. What will be the radius of this circle?

asked Jul 8, 2022 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 104 views

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Two identical spheres, $X$ and $Y$, are suspended by insulated threads from a ceiling, as shown in the diagram below. Sphere $X$ has an excess of 25 electrons and the charge on $Y$ is unknown.

asked Jul 2, 2022 in Mathematics by ♦GaussTheBot Diamond (44,715 points) | 214 views

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Two solid iron spheres, each $1 \mathrm{~m}$ in diameter, are in a region of interstellar space where the gravitational field of the rest of the universe is negligible. Intially, they are at rest with respect to each other

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,715 points) | 96 views

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According to the Thomas-Fermi model, the number of electrons per unit volume in an isolated neutral atom is given by \[ \rho(r)=\frac{8 \pi}{3 h^{3}}(2 m e)^{3 / 2}\left(V(r)-V_{0}\right)^{3 / 2} \]

asked Jul 1, 2022 in Mathematics by ♦GaussTheBot Diamond (44,715 points) | 63 views

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How Many Electrons Does Bromine Have?

asked Mar 27, 2022 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 235 views

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In a p-type semiconductor, the

asked Nov 10, 2021 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 189 views

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A P-type semiconductor is doped to produce one of the following. Will it produce:

asked Oct 5, 2021 in General Knowledge by Digitized Wooden Status (671 points) | 218 views

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The idea that electrons revolved in orbits around the nucleus of an atom without radiating energy away from the atom was postulated by:

asked Oct 5, 2021 in General Knowledge by Digitized Wooden Status (671 points) | 204 views

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Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What important conclusion was drawn from this experiment?

asked Oct 5, 2021 in General Knowledge by Digitized Wooden Status (671 points) | 240 views

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In Bohr's theory of the atom, what force was responsible for holding the electrons in their orbit?

asked Oct 5, 2021 in General Knowledge by Digitized Wooden Status (671 points) | 274 views

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Two metal spheres, $\mathrm{M}$ and $\mathrm{N}$, on insulated stands carry charges $+\mathrm{Q}_{\mathrm{M}}$ and $-6 \mathrm{nC}$ respectively.

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 263 views

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A -3 nC charge $Q_{1}$ is placed $10 \mathrm{~cm}$ away from $a+3 n C Q_{2}$ charge as shown in the diagram below.

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 296 views

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Two identical negatively charged spheres, $A$ and $B$, having charges of the same magnitude, . . .

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 646 views

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Two metal spheres, $\mathrm{M}$ and $\mathbf{N}$, are on insulated stands. $\mathrm{M}$ with charge of $-4 \mathrm{nC}$ is placed $30 \mathrm{~mm}$ away from N.

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 443 views

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Two metal spheres, $A$ and $B$, on insulated stands is placed with their centres $10 \mathrm{~cm}$ apart as shown in the sketch below. A has a charge of $-15 \mathrm{nC}$ and $\mathrm{B}$ an unknown positive charge $X$.

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 298 views

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Two metal spheres, $\mathbf{P}$ and $\mathbf{Q}$, on insulated stands, carrying charges of $+5 \times 10^{-9} \mathrm{C}$ and $+5 \times 10^{-9} \mathrm{C}$ respectively, are placed with their centres $20 \mathrm{~mm}$ apart.

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 464 views

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Two metal spheres, $\mathbf{P}$ and $\mathrm{T}$, on insulated stands, carry charges of $+3 \times 10^{-9} \mathrm{C}$ and $-6 \times 10^{-9} \mathrm{C}$ respectively.

asked Oct 1, 2021 in General Knowledge by Student Bronze Status (5,662 points) | 390 views

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Ten equal spheres are stacked to form a regular tetrahedron. How many points of contact are there between the spheres?

asked Jun 26, 2021 in Mathematics by ♦MathsGee Diamond (88,832 points) | 224 views

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Two identical metal spheres, $\mathbf{P}$ and $\mathbf{R}$, on insulated stands, carry different charges. The spheres are brought into contact and then separated again.

asked May 7, 2021 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 1,225 views

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How many electrons are there in ag?

asked Nov 24, 2020 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 294 views

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How many protons neutrons and electrons are in ag?

asked Nov 24, 2020 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 506 views

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How many protons and neutrons are in an atom of Ag 109?

asked Nov 24, 2020 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 1,731 views

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What element has 47 protons 62 neutrons and 46 electrons?

asked Nov 24, 2020 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 2,363 views

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What does Ag+ mean?

asked Nov 24, 2020 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 986 views

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What element has 47 protons and 61 neutrons?

asked Nov 24, 2020 in General Knowledge by ♦GaussTheBot Diamond (44,715 points) | 1,776 views

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Two small identical metal spheres, each carrying equal charges Q, are brought into contact and then separated. The charge on each sphere will now be …

asked Nov 2, 2020 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 392 views

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Do electrons in a circuit move in the direction of current?

asked Sep 9, 2020 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 303 views

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How many electron charges of $1.6 \times 10^{-19}C$ are in a Coulomb?

asked Sep 9, 2020 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 1,888 views

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Do protons influence the mass of an atom more than electrons? Explain your answer.

asked Sep 9, 2020 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 868 views

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What is an atom?

asked Sep 9, 2020 in General Knowledge by ♦MathsGee Diamond (88,832 points) | 234 views

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Can I use the right-hand rule for protons and electrons alike?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 269 views

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when charging a capacitor how electrons move from +ve terminal to -ve terminal & wthout interruption to the flow. please explain it with an example

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 211 views

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How is light is produced when electrons flows through a wire?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 177 views

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Can u please make it clear how to determine the direction of the current flow?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 371 views

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Why does current flow from positive to negative?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 281 views

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If electrons are travelling the same speed throughout the circuit how do they "know" to go at a slower speed if they might not bump into anything to slow them down?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 226 views

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Can electrons move at the speed of light ?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 200 views

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How do electrons in alternating current circuits carry energy?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 253 views

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Do electrons move rapidly through direct-current circuits?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 197 views

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Please explain the functions of a battery. How does it function?the electrons move from - side to the bulb and to the +side?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 300 views

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Ain't rubber balloon an insulator ? then how does it pickup electrons from our hair ? can it do that ?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 200 views

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Does a proton actually move in the opposite direction which in-turn creates an illusion that protons are moving in the direction of the current?

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 247 views

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Is it the flow of charge or the flow of electrons? I have seen both explanations for current.

asked Sep 5, 2020 in General Knowledge by Student Bronze Status (5,662 points) | 268 views

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