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.
superscript 63 and subscript 152 Eu (the super and subscript go before the symbol with superscript on top of the subscript)
Depending on your meaning, it is; 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), 1.772 (rounded), Or 17.72 Or 5.60357(Rounded)
It is rounded to 1 - when rounded.
The answer depends on the degree to which it is to be rounded.
Europium is a light pink color. Europium is used as the red phosphor in color television and lasers. Europium is used as a neutron absorber in nuclear research. The atomic weight of Europium is 151.96.
Europium, number 63
Europium and his compounds has a low toxicity.
Europium
latin name of europium
Scandium is Sc and Europium is Eu.
Europium
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
One is that Europium Salts are toxic when injested.
Europium is a metal with a body-centered cubic crystalline structure.
im sittin in class tryin to find the answer for Europium
Europium is radioactive, though for most practical purposes it can be treated as stable. 52.2% of europium is stable. 47.8%, is radioactive 151Eu, but the half life of this is long, at 5,000,000,000,000,000,000 years. Like all other elements, europium has radioactive synthetic isotopes.