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Mass number is the number of protons and neutrons in the nucleus of an atom. And we might consider that the mass number of europium is 153 and call it good. Europium has an atomic number of 63, and there is only one stable isotope of it - europium-153. This isotope has the 63 protons and 90 neutrons. But there are other isotopes of europium, and their mass numbers range from 130 through 167 because europium has isotopes with neutron counts from 47 through 104. Use the link below for more information.
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Why is the atomic mass number not a whole number?
We can find Atomic Mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
Atomic mass equals the number of what?
The atomic mass NUMBER equals the number of protons and neutrons in an atom. DO NOT confuse this with the mass of an atom.
What is the relationship btw atomic mass and atomic mass number?
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
Was is the atomic mass number for oxygen?
The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element.For example the isotope oxygen-16 has the mass number 16.The mass number is not the atomic mass !!
What is the atomic mass number of iodine?
The atomic mass number of iodine is 17.8923
What is the atomic mass of europium?
The atomic mass of europium is approximately 151.964 amu (atomic mass units).
Europium has a mass of 150.9196amu and a mass of m152.9209amu the average atomic mass of Eu is 151.96amu calculate the relative abundance of the two europium isotopes?
Europium 150.9196 has relative abundance of 51.99%, while Europium 152.9209 has a relative abundance of 48.04% (Assuming that these are the only 2 isotopes of Europium
Does europium glow in the dark?
Europium can be used in an assortment of glow in the dark paints. The metal itself does not glow.Europium:Symbol: EuAtomic Mass: 151.9Atomic Number: 63
How many neutrons are in europium?
europium's atomic number is 63, it's mass (in amu's [atomic mass units]) is 152, rounded. the atomic number = the number of protons, so europium has 63 protons. the number of protons = the number of electrons, so there are 63 electrons in a europium atom. the mass= protons + neutrons, therefore neutrons = mass - protons. this would be 152 - 63 = 89 there are 89 neutrons in a europium atom. p+: 63 n: 89 e-: 63 hope i helped! ^.^
Where is europium in the periodic table?
Europium, number 63
What is europium's atomic mass?
It is 151.964
What metal has an atomic mass of 151.96?
Europium
Metal with an atomic mass of 151.96?
Europium
What is the atomic number of europium?
Europium, with the chemical symbol Eu, is the chemical element with the atomic number 63.
What has an atomic mass of 151.96?
Eu-Europium Glad to help
What element has 63 electrons?
Iodine (I) has 53 electrons; the number of electrons is identical to number of protons and the atomic number.
What is the atomic number for EU?
Europium - 63
