Question

a) An ion Z 3. has number of electrons 10. determine its atomic
number
b) The element X shows variable valencies 2 and 3 and forms
oxides. Write the chemical formula of the oxides
c) Write the chemical formula of the compound when X combines
with sulphate and carbonate​

Answer 1

Answer:

a) Atomic number =10

b) The chemical formula are XO and X2O3

c) THE REQUIRED FORMULA ARE XSO4 AND XCO3

Explanation:

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