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  2. Reactivity series - Wikipedia

    en.wikipedia.org/wiki/Reactivity_series

    Download as PDF; Printable version; ... a reactivity series ... The image shows a periodic table extract with the electronegativity values of metals.

  3. Template : Periodic table (electronegativity by Pauling scale)

    en.wikipedia.org/wiki/Template:Periodic_table...

    See also: Electronegativities of the elements (data page) There are no reliable sources for Pm, Eu and Yb other than the range of 1.1–1.2; see Pauling, Linus (1960).

  4. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    Periodic table of the chemical elements showing the most or more commonly named sets of elements (in periodic tables), and a traditional dividing line between metals and nonmetals. The f-block actually fits between groups 2 and 3 ; it is usually shown at the foot of the table to save horizontal space.

  5. Template : Periodic table (electronegativity by Sanderson scale)

    en.wikipedia.org/wiki/Template:Periodic_table...

    Template: Periodic table ... Download QR code; Print/export Download as PDF; ... Electronegativity using the Sanderson scale.

  6. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

    Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... Mohs scale of mineral hardness;

  7. Thorium - Wikipedia

    en.wikipedia.org/wiki/Thorium

    Despite thorium's position in the f-block of the periodic table, it has an anomalous [Rn]6d 2 7s 2 electron configuration in the ground state, as the 5f and 6d subshells in the early actinides are very close in energy, even more so than the 4f and 5d subshells of the lanthanides: thorium's 6d subshells are lower in energy than its 5f subshells ...

  8. Water-reactive substances - Wikipedia

    en.wikipedia.org/wiki/Water-reactive_substances

    The alkaline earth metals (Be, Mg, Ca, Sr, Ba, and Ra) are the second most reactive metals in the periodic table, and, like the Group 1 metals, have increasing reactivity with increasing numbers of energy levels. Beryllium (Be) is the only alkaline earth metal that does not react with water or steam, even if the metal is heated red hot. [9]

  9. Alkaline earth metal - Wikipedia

    en.wikipedia.org/wiki/Alkaline_earth_metal

    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). [1] The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. [2]

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