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82 in the stable isotope 139 La which makes up over 99% of naturally occuring lanthanum. It has 81 in the stable isotope 137La which makes up <1% of naturally occuring Lanthanum.
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How many neutrons have an atom with a mass number of 20 and 11 neutrons?
How many neutrons would it have if it had 11 neutrons? 11.
How many neutrons does tellurium-123 have?
There are 71 neutrons in tellurium-123
How many protons and neutrons are in dysprosium?
there are 66 protons & 97 neutrons
How many neutrons are in Na?
12 neutrons are in sodium (Na).
How many neutrons does this element have argon 39.948?
neutrons = 40 - 18 = 22
How many neutrons does Lanthanum-77 have?
1
How many protons electrons and neutrons in lanthanum-138?
Lanthanum has 57 protons and 81-82 neutrons.
How many protons neutrons and electrons are there in a neutral atom of the isotope of lanthanum named lanthanum-138?
Protons: Any atom of lanthanum has 57 protons. Neutrons: Lanthanum has 30 radioactive isotopes with neutron numbers ranging from 60 to 96 but the only stable isotope(139La) has 82 neutrons. Electrons: The number of electrons is normally the same as the number of protons.
How many neutrons down lanthanum-141 have in its nucleus?
Lanthanum's atomic number is 57 thus it has 57 protons, the number of protons an atom has is equal to the atomic weight, in this case 141 minus the number of protons or 57 so, 141-57=84 Lanthanum-141 has 84 neutrons.
How many valence electron does lanthanum have?
Lanthanum has 2 valence electrons.
How many valence electrons are in a lanthanum atom?
Lanthanum with atom number 57 and mass number 139 has: 57 protons, 82 neutrons (since 57+82=139) and 57 electrons. La-138 has 81 neutrons (i.s.o. 82) with 57 protons and 57 electrons.
How many protrons does lanthanum have?
57
Is lanthanum an alloy?
Lanthanum is not an allot.
What good slogan for the element lanthanum?
what is a good slogan for Lanthanum
What odor is lanthanum?
lanthanum is a element on the perodic table ...
What is a man-made lanthanum element?
Lanthanum is a natural element.
What is the oxidation number for lanthanum?
The oxidation number for lanthanum is +3.
