The 29th element is copper.
I think 49th is Indium
The eighty ninth element in the periodic table is Actinium, with the symbol Ac and atomic number 89. It is a radioactive element that is part of the actinide series.
The fifty-ninth element on the periodic table is Praseodymium (symbol: Pr). It is a rare earth element that is commonly used in magnets, lasers, and other electronic devices.
The sixty-ninth element in the periodic table is thulium (Tm). It is a rare earth metal with atomic number 69 and is named after the ancient city of Thule.
The ninth element on the periodic table of elements is fluorine (F). It is a highly reactive, pale yellow gas at room temperature. Fluorine is commonly used in toothpaste and water fluoridation to promote dental health.
There is no element with the name "fulcrum" on the periodic table. Elements on the periodic table are represented by their atomic number and chemical symbol. You may be thinking of an element that is near atomic number nine, which is fluorine (symbol F).
The 109th element in the periodic table is Meitnerium (Mt). It is a synthetic element and is radioactive, with a very short half-life. It was first synthesized in 1982 by a team of German researchers.
Annals of the Twenty-Ninth Century was created in 1874.
Annals of the Twenty-Ninth Century has 758 pages.
The twenty ninth sultan of the Ottoman Empire was Mustafa IV.
Twenty-ninth Amendment of the Constitution of Ireland happened in 2011.
No, "twenty-ninth" is hyphenated. When writing out ordinal numbers that combine a number and a suffix (like -th), a hyphen is used to connect the two parts. So, it should be written as "twenty-ninth."