Gadolinium, with the chemical symbol Gd, is the chemical element with the atomic number 64.
The atomic mass number of gadolinium is 157.25 g/mol.
91
The atomic mass of gadolinium is 157.25 (which is the measured mass based on the various isotopes which occur in nature).
These refer to the element gadolinium. 64 is the proton number of gadolinium, which characterizes it.
157.25
Gadolinium is ferromagnetic at temperatures below 20 °C and is strongly paramagnetic above this temperature.
An element with 148 neutrons in its nucleus is usually Gadolinium (Gd) with an atomic number of 64, as its atomic mass is approximately 157. There may be isotopes of other elements with 148 neutrons as well.
The element symbol "Gd" represents Gadolinium. Gadolinium has an atomic number of 64, which means it has 64 protons. The atomic mass of Gadolinium is approximately 157.25 amu, so for the isotope 162Gd, there are approximately 98 neutrons. Adding 3 electrons to the neutral atom's 64 electrons gives a total of 67 electrons.
'Gd' is Gadolinium. Atomic No. is 64 Atomic Mass is 157.25 The most abundant stable isotope. It is a Lanthanide metallic element. It has 6 stable isotopes, this means that each isotope will have a different atomic mass. It has three oxidation states ,+1, + 2 , +3. Oxid'n state '3' being the most stable. Do not confuse the elemental symbol 'Gd' for gold. Gold has the elemental symbol 'Au' (Aurum ; from Latin). Gadolinium is named after the mineral ' Gadolinite' , which itself is named after Johan Gadolin, who was a Finnish/Swedish chemist involved in research of Rare Earth elements.
There is not 400th element. So far we only have up to element 118: ununoctium
Gadolinium = Gd
gadolinium