help! help! plz which important property did mendelea use to classify his elements in the period table and did he stick to that ​

He used atomic weight as his basis and then arranged the known elements, the weight steadily increasing as it went on. He DID stick to the basis, leaving blank spaces for unknown elements. Hope this helps a lot!

Explanation:

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

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