There is not 400th element. So far we only have up to element 118: ununoctium
If you mean name of an html element, it should look like this: <element name="element">
This element is mendelevium (element 101).
Element 54.
Gallium.
Helium Helium
799.
0.0025
The female name Alejandra comes from Spain. Alejandra means defender of the people. It ranks 400th in popular names given to girls.
799 would be the 400th odd number even if '1' were not the first one.
Ken Griffey Jr. was 30 years old when he hit his 400th home run.
In 2176.
Stan Musial hit his 400th home run on May 7, 1959, against the Cubs.
we celebrated the 400th anniversary in summer 2008
It is 1.
Creation in the 21st Century - 2004 Happy 400th Anniversary was released on: USA: 1 April 2011
The element name for He is Helium
The element name for He is Helium