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An element 'X' forms an oxide with formula X₂O₃
Study the data given below and answer the questions which follow:
Imagine you are a chemist working in a laboratory that specializes in analysing and identifying chemical compounds. One day, a colleague asks for your help to determine the cations and anions present in several compounds they are working with. Analyse the following compounds and identify the cations and anions present (if any): (a) KBr (b) CaCO₃ (c) O₂ (d) MgSO₄
Given below is the atomic structure of an atom of element ²⁴₁₂X, according to Bohr's model of the atom (where, n and p represent the number of neutrons and protons respectively).
If an element Y has two electrons in its outermost shell, what would be the nature and charge on the ion formed if both electrons are removed from the outermost shell?
Determine the valency of the following atoms: X, Y, Z, W
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