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  2. Wikipedia : WikiProject Elements/Isotope tables/Element 21-30

    en.wikipedia.org/.../Isotope_tables/Element_21-30

    30 Zinc: List: 52 Zn 53 Zn 54 Zn 55 Zn 56 Zn 57 Zn 58 Zn 59 Zn ... Wikipedia: WikiProject Elements/Isotope tables/Element 21-30. Add languages ...

  3. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    The definitive visualisation of all 118 elements is the periodic table of the elements, ... 30.974: 1.823: 317.30: 550: 0.769: 2.19: 1 050: ... 21 Sc Scandium [af] 3 ...

  4. Periodic table - Wikipedia

    en.wikipedia.org/wiki/Periodic_table

    For reasons of space, [30] [31] the periodic table is commonly presented with the f-block elements cut out and positioned as a distinct part below the main body. [32] [30] [23] This reduces the number of element columns from 32 to 18. [30] Both forms represent the same periodic table. [6]

  5. Template:Periodic table - Wikipedia

    en.wikipedia.org/wiki/Template:Periodic_table

    Phos­phorus 15 P 30.974: ... Cal­cium 20 Ca 40.078: Scan­dium 21 Sc ... This periodic table is the prime form presented at this English wikipedia.

  6. Periodic table (electron configurations) - Wikipedia

    en.wikipedia.org/wiki/Periodic_table_(electron...

    21 Sc 2 1 - 22 Ti 2 2 - 23 V 2 3 - 24 Cr 1 5 - 25 Mn 2 5 - 26 Fe 2 6 - 27 Co 2 7 ... 30 Zn 2 10 - 31 Ga 2 10 1 32 Ge 2 10 ... The construction of the periodic table ...

  7. List of chemistry mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_mnemonics

    A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.

  8. List of elements by atomic properties - Wikipedia

    en.wikipedia.org/wiki/List_of_elements_by_atomic...

    This is a list of chemical elements and their atomic properties, ordered by atomic number (Z).. Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.

  9. Atomicity (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Atomicity_(chemistry)

    The most common values of atomicity for the first 30 elements in the periodic table are as follows: Atomic Number ... 21 Scandium (Sc) 1 22 Titanium (Ti) 1 23 ...