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Complete the following table and answer the questions given below:
Atomic number (Z) is equal to _____
In a sample of ethyl ethanoate (CH₃COOC₂H₅), the two oxygen atoms have identical numbers of electrons but differing numbers of neutrons. Which of the following provides the correct explanation for this?
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
Determine the valency of the following atoms: X, Y, Z, W
Write down the electron distribution of the Phosphorus atom. How many electrons are there in the M shell? (Atomic number of phosphorus is 15).
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