period
The properties of elements are found to be periodic when arranged according to atomic number. Hence atomic number is considered as base for arranging the elements.
Th is element number 90 on the periodic table It is thorium, it is in the Actinides, and it is radioactive
Element 95 is americium.
its valence electrons, its number of energy levels, how reactive it is, and some properties it has
Actinoids family contain: Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lw.
Th horizontal rows are referred as periods. There are 7 periods in Periodic Table.
Lithium, (Li) element three and the least reactive of the alkali metals group.
Krypton is the 36 th element in the periodic table. It is a noble gas belonging to 4th period of the periodic table.
No element has the symbol of just T on the periodic table of the elements. Here are the "T" within the Period Table of Elements: Ti = Titanium Tc = Technetium Te = Tellurium Tl = Thallium Ta = Tantalum Tb = Terbium Tm = Thulium Th = Thorium
the original periodic table was based on th elements it had
Uranium
the answer is calendar