1.hydrogen
2.helium
3.lithium
4.beryllium
5.boron
6.carbon
7.nitrogen
8.oxygen
9.fluorine
A. Ninth and tenth
Glycogen is not an element and it has no element symbol.
an element.
The radioactive element is composed of unstable nuclei that try to reach stability through emitting nuclear radiations as alpha, beta, and gamma nuclear radiations.
It is: 1.08*10^9 = 1,080,000,000
The ninth term in a series is called the "ninth element" or the "ninth member" of the series.
The 29th element is copper.
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.
I think 49th is Indium
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.
It is the ninth most abundant element in the Earth's crust at ~0.63% by mass
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.
1/3
Ninth is the correct spelling.
Ninth
Iodine, element number 53 is the halogen (Group 17) element in period 5.