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Recent questions tagged electron


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When an atomic nucleus emits a beta particle, one of its neutrons disintegrates into one of the following set of particles. Does it disintegrate into:

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An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of:
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An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of:An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: w) momentum but not energ ...
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asked in Physics & Chemistry Oct 5, 2021
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The collision between a photon and a free electron was first explained by which of the following scientists?
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The collision between a photon and a free electron was first explained by which of the following scientists?The collision between a photon and a free electron was first explained by which of the following scientists? w) Einstein x) Heisenberg y) Compton ...
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asked in Physics & Chemistry Oct 5, 2021
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Who first theoretically predicted the existence of the positron, a positively charged electron? He received the Nobel Prize in Physics in 1933.

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Where did the word electron come from?
1 answer 89 views
Where did the word electron come from?Where did the word electron come from? ...
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asked in Physics & Chemistry Aug 30, 2021
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What is the minimum energy needed to remove an electron from the surface of a metal called?
0 answers 183 views
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How can i apply Fleming's left hand rule to an electron revolving in orbit ( a tiny loop of current) ?
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why do we need to store charge?
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why do we need to store charge?why do we need to store charge? ...
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asked in Physics & Chemistry Sep 5, 2020
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Why does current flow from positive to negative?
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Why does current flow from positive to negative?Why does current flow from positive to negative? ...
by Student SIlver Status
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asked in Physics & Chemistry Sep 5, 2020
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we say electron and proton have charge negative and positive then how can we define charge. what is charge?
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What do we mean when we say that an electron has a charge?
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What do we mean when we say that an electron has a charge?I don't understand what charge is. An atom can have a charge because its electrons and protons have a charge. But what do we mean when we say that an ...
by Student SIlver Status
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asked in Physics & Chemistry Sep 5, 2020
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A positron is an elementary particle that has the same mass as an electron but ...
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According to VSEPR theory, the number of valence electron groups surrounding the central atom in $BF_3$ is
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According to VSEPR theory, the number of valence electron groups surrounding the central atom in SF4 is
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Valence shell electron pair repulsion (VSEPR) theory predicts ...
1 answer 199 views
Valence shell electron pair repulsion (VSEPR) theory predicts ...Valence shell electron pair repulsion (VSEPR) theory predicts that if the central atom in a molecule has 2 electron groups (bonds or lone pairs), the ...
by MathsGee Platinum
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asked in Physics & Chemistry Aug 20, 2020
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Element M belongs to Group III of the periodic table.
0 answers 93 views
Element M belongs to Group III of the periodic table.<p>Element M belongs to Group III of the periodic table. </p> <ol>     <li>How many electrons do ...
by anonymous
asked in Physics & Chemistry Jun 19, 2020
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What is the difference between an electron microscope and an ordinary light microscope?
2 answers 971 views
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Calculate the electronegativity difference between Be and C.
1 answer 125 views
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Can you define the quantum numbers and relate them to the position of an electron?
1 answer 148 views
Can you define the quantum numbers and relate them to the position of an electron?Can you define the quantum numbers and relate them to the position of an electron? ...
by MathsGee Platinum
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asked in Physics & Chemistry Jun 1, 2020
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Can you predict trends in atomic radii, electronegativity, ionization energy and electron affinity?
1 answer 372 views
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What is a charge of a proton?
1 answer 136 views
What is a charge of a proton?What is a charge of a proton? A.    None B.    Positive C.   Negative D.   Either a positive or negative ...
by MathsGee Platinum
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asked in Physics & Chemistry Apr 20, 2020
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A stable nuclide absorbs a neutron, emits an electron, and then splits into two $\alpha$ particles. Identify the nuclide.
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Determine the energy required to move the electron.
1 answer 386 views
Determine the energy required to move the electron.A potential difference of 20 V is given to an electron.       (me = 9.11 x 10 -31 kg)      &nb ...
by MathsGee Platinum
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asked in Physics & Chemistry Aug 26, 2019
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Which has the greater charge electron or proton?
2 answers 256 views
Which has the greater charge electron or proton?Which has the greater charge electron or proton? ...
by MathsGee Platinum
(118,646 points)
asked in Physics & Chemistry Aug 26, 2019
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Which has more mass electron or proton?
4 answers 2.5K views
Which has more mass electron or proton?Which has more mass electron or proton? ...
by MathsGee Platinum
(118,646 points)
asked in Physics & Chemistry Aug 26, 2019
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