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Lepton number in electron capture
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clausencallum
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#1
https://www.dropbox.com/s/dofptcijg5...epton.JPG?dl=0
How is the lepton number conserved in this electron capture.
19 + 1 doesn't not equal 18 + 1
Many thanks
How is the lepton number conserved in this electron capture.
19 + 1 doesn't not equal 18 + 1
Many thanks
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KING.NEEK
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#2
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#2
(Original post by clausencallum)
https://www.dropbox.com/s/dofptcijg5...epton.JPG?dl=0
How is the lepton number conserved in this electron capture.
19 + 1 doesn't not equal 18 + 1
Many thanks
https://www.dropbox.com/s/dofptcijg5...epton.JPG?dl=0
How is the lepton number conserved in this electron capture.
19 + 1 doesn't not equal 18 + 1
Many thanks
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clausencallum
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#3
(Original post by kishxx01)
K and ar are elements not leptons
K and ar are elements not leptons
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BTAnonymous
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#4
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#4
Well firstly you shouldn't be taking into account the atomic number; lepton number is conserved.
Potassium has 0 lepton number. The electron has a lepton number of +1.
Argon has 0 lepton number number. The electron neutrino has a lepton number +1
0 + 1 --> 0 + 1
1=1
Lepton number conserved.
Your thinking is incorrect because in electron capture, a proton decays into a neutrino by capturing an inner shell electron (it's in the name!). Therefore, both the proton number and the number of electrons in the atom decrease by 1.
EDIT: so it's actually 18 + 1 --> 18 + 1
19=19 hence lepton number is conserved.
Potassium has 0 lepton number. The electron has a lepton number of +1.
Argon has 0 lepton number number. The electron neutrino has a lepton number +1
0 + 1 --> 0 + 1
1=1
Lepton number conserved.
Your thinking is incorrect because in electron capture, a proton decays into a neutrino by capturing an inner shell electron (it's in the name!). Therefore, both the proton number and the number of electrons in the atom decrease by 1.
EDIT: so it's actually 18 + 1 --> 18 + 1
19=19 hence lepton number is conserved.
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KING.NEEK
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#5
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#5
(Original post by clausencallum)
but they have electrons so surely they have lepton number?
but they have electrons so surely they have lepton number?
(Original post by BTAnonymous)
Well firstly you shouldn't be taking into account the atomic number; lepton number is conserved.
Potassium has 0 lepton number. The electron has a lepton number of +1.
Argon has 0 lepton number number. The electron neutrino has a lepton number +1
0 + 1 --> 0 + 1
1=1
Lepton number conserved.
Your thinking is incorrect because in electron capture, a proton decays into a neutrino by capturing an inner shell electron (it's in the name!). Therefore, both the proton number and the number of electrons in the atom decrease by 1.
Well firstly you shouldn't be taking into account the atomic number; lepton number is conserved.
Potassium has 0 lepton number. The electron has a lepton number of +1.
Argon has 0 lepton number number. The electron neutrino has a lepton number +1
0 + 1 --> 0 + 1
1=1
Lepton number conserved.
Your thinking is incorrect because in electron capture, a proton decays into a neutrino by capturing an inner shell electron (it's in the name!). Therefore, both the proton number and the number of electrons in the atom decrease by 1.
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clausencallum
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#6
(Original post by BTAnonymous)
Well firstly you shouldn't be taking into account the atomic number; lepton number is conserved.
Potassium has 0 lepton number. The electron has a lepton number of +1.
Argon has 0 lepton number number. The electron neutrino has a lepton number +1
0 + 1 --> 0 + 1
1=1
Lepton number conserved.
Your thinking is incorrect because in electron capture, a proton decays into a neutrino by capturing an inner shell electron (it's in the name!). Therefore, both the proton number and the number of electrons in the atom decrease by 1.
EDIT: so it's actually 18 + 1 --> 18 + 1
19=19 hence lepton number is conserved.
Well firstly you shouldn't be taking into account the atomic number; lepton number is conserved.
Potassium has 0 lepton number. The electron has a lepton number of +1.
Argon has 0 lepton number number. The electron neutrino has a lepton number +1
0 + 1 --> 0 + 1
1=1
Lepton number conserved.
Your thinking is incorrect because in electron capture, a proton decays into a neutrino by capturing an inner shell electron (it's in the name!). Therefore, both the proton number and the number of electrons in the atom decrease by 1.
EDIT: so it's actually 18 + 1 --> 18 + 1
19=19 hence lepton number is conserved.
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BTAnonymous
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#7
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#7
(Original post by clausencallum)
But why do elements not have lepton numbers?
But why do elements not have lepton numbers?
You're thinking about the number of electrons in the atom aren't you?
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clausencallum
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#8
(Original post by BTAnonymous)
What is a lepton? It's a fundamental particle cannot decay by the strong nuclear force. Are elements fundamental particles? No. They are made of electrons, protons and neutrons.
You're thinking about the number of electrons in the atom aren't you?
What is a lepton? It's a fundamental particle cannot decay by the strong nuclear force. Are elements fundamental particles? No. They are made of electrons, protons and neutrons.
You're thinking about the number of electrons in the atom aren't you?
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Rhiaaaaa
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#9
BTAnonymous
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#10
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#10
(Original post by clausencallum)
yep
yep
So it isn't 19 + 1 but 18 + 1.
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clausencallum
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#11
(Original post by BTAnonymous)
What is a lepton? It's a fundamental particle cannot decay by the strong nuclear force. Are elements fundamental particles? No. They are made of electrons, protons and neutrons.
You're thinking about the number of electrons in the atom aren't you?
What is a lepton? It's a fundamental particle cannot decay by the strong nuclear force. Are elements fundamental particles? No. They are made of electrons, protons and neutrons.
You're thinking about the number of electrons in the atom aren't you?
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BTAnonymous
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#12
Rhiaaaaa
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#13
BTAnonymous
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#14
clausencallum
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#15
(Original post by BTAnonymous)
18+1-->18+1
18+1-->18+1
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BTAnonymous
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#16
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#16
(Original post by clausencallum)
ok, I think just knowing that elements dont have baryon and lepton numbers for aqa a level physics will be ok. Many thanks though
ok, I think just knowing that elements dont have baryon and lepton numbers for aqa a level physics will be ok. Many thanks though
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Rhiaaaaa
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#17
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#17
(Original post by BTAnonymous)
How so?
How so?
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BTAnonymous
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#18
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#18
(Original post by Rhiaaaaa)
I WAS TALKING ABOUT CHARGE. Idk what lepton number is TELL ME
I WAS TALKING ABOUT CHARGE. Idk what lepton number is TELL ME
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ben288888
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#19
Rhiaaaaa
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#20
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