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13 magg 1887 anni - The english scientist Henry Moseley ( !887 - 1915 ) discovered that atoms of each element contain a unique positive charged

Descrizione:

Henry Mendeleev

Aggiunto al nastro di tempo:

Jamiyah Polite & Anyliah Middleton

13 ott 2017

0

0

703

Data:

13 magg 1887 anni

Adesso

~ 138 years ago

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