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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.
Wiki User
∙ 15y ago
Belinda Ngoziyabo
- Mass number is the number of protons and neutrons in the nucleus of an atom.
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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).
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 the atomic number of europium?
Europium, with the chemical symbol Eu, is the chemical element with the atomic number 63.
What is the symbol of europium-151 atomic number mass number?
the atomic number is on the periodic table of elements... its the very top number in the box above the symbol so it's 63, don't let the 151 fool you or trip up your mental footing... all the atomic numbers are there...
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 has an atomic mass of 151.96?
Eu-Europium Glad to help
What element has 63 electrons?
The element with 63 electrons is europium, which has the atomic number 63. Europium is a rare earth element that is used in fluorescent lamps and color TV tubes due to its ability to emit red light.
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?
Let x represent the relative abundance of the isotope with mass 150.9196 amu and 1-x represent the relative abundance of the other isotope with mass 152.9209 amu. The average atomic mass formula is [(mass isotope 1)(abundance isotope 1) + (mass isotope 2)(abundance isotope 2)] = average atomic mass. Substituting the values given, you can set up a system of equations and solve for x to find the relative abundance of each isotope.
Does europium glow in the dark?
Yes, europium is known for its unique property of fluorescence. When exposed to certain types of light, europium can absorb and then release energy as visible light, causing it to glow in the dark. This property is often used in manufacturing products like glow-in-the-dark items and fluorescent lamps.
