Question

An element 'A' captures atmospheric oxygen to
form an oxide 'B'. This oxide 'B' has pH value 8.5
and when dissolves in water, it shows fair solubility.
'A' is isoelectronic with argon after losing one
valence electron. Identify 'A' and 'B'.

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Answer 1

Answer:

Answer:

rdinate is also called Abscissa y Co ordinate is also called ordinate (bar grade)

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Explanation:

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Answer 2

Answer:

Potassium-A

K2O-B

since the element is isoelectronic with argon(atomic no. 18) when it loses one electron therefore the atomic number of the element is 19 which is the atomic number of potassium hence the element is Potassium and the compound formed by it is is Potassium oxide