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Unbinilium

If A hemical element, one with 

atomic number 120 (Ubn)

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"Ubn" redirects here. For other uses, see UBN (disambiguation).

Unbinilium, also known as eka-radium or element 120, is a hypothetical chemical element; it has symbol Ubn and atomic number 120. Unbinilium and Ubn are the temporary systematic IUPAC name and symbol, which are used until the element is discovered, confirmed, and a permanent name is decided upon. In the periodic table of the elements, it is expected to be an s-block element, an alkaline earth metal, and the second element in the eighth period. It has attracted attention because of some predictions that it may be in the island of stability.

 All the discovered alkaline earth metals occur in nature, although radium 

occurs only through the decay chain

 of uranium and thorium and

 not as a primordial element. 

There have been experiments, all unsuccessful, to try to synthesize element 120, the next potential member of the group.

Alkaline earth metal

Group of chemical elements

The alkaline earth metals are six chemical elements in group 2 of the periodic table. 

They are

 beryllium (Be), 

magnesium (Mg), 

calcium (Ca), 

strontium (Sr),

 barium (Ba), and

 radium (Ra).

 The elements have very similar properties:

 they are all shiny,

 silvery-white, 

somewhat reactive metals

 at standard temperature and pressure

           To get her with Helium,           

 these elements have in common 

an outer s orbital which is full—

that is, this

 orbital contains its One full complement 

of two electrons, 

which the alkaline earth metals

 readily lose to form 

cations with charge +2,

 and an oxidation state of +2. 

Helium is grouped with the noble gases and not with the alkaline earth metals, but it is theorized to have some similarities to beryllium when forced into bonding and has sometimes been suggested to belong to group 2.

The pH scale is logarithmic and inversely indicates the activity of hydrogen ions in the solution 

where [H+] is the equilibrium molar concentration of H+ (M = mol/L) in the solution. At 25 °C (77°F), solutions with a pH less than 7 are acidic, and solutions with a pH greater than 7 are basic. Solutions with a pH of 7 at 25 °C are neutral (i.e. have the same concentration of H+ ions as OH− ions, i.e. the same as pure water). The neutral value of the pH depends on the temperature and is lower than 7 if the temperature increases above 25 °C. The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases.