489 prompts matching "How atomic number identifies an element"
Exam practice: Concentration, dilution and titration calculations
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Real-life Nigeria: Checking an answer for physical sense
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Practice set: Percentage yield and percentage purity
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Exam practice: Empirical and molecular formula from composition
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Spot my mistake: Forgetting to balance the equation before using mole ratios
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Real-life Nigeria: Stoichiometry in a Nigerian industrial context
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Practice set: The characteristic chemistry of Groups 1, 2, 7 and 0
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Real-life Nigeria: Using the table to answer an unseen question
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Spot my mistake: The time-management mistakes candidates make
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Spot my mistake: The topics I keep getting wrong, and why
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Practice set: Writing s, p and d electron configurations
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Exam practice: The configuration of an ion compared with that of its atom
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Calculation practice: Calculating relative atomic mass from isotopic data
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Project task: Building a configuration chart for the first thirty elements
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Chemistry at work: How spectra reveal electronic structure
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Exam practice: The trend in metallic character and in oxide acidity
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Calculation practice: Comparing two elements using their trend data
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Practice set: Dative covalent bonding and where it occurs
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Exam practice: Metallic bonding and hydrogen bonding
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Real-life Nigeria: Bond type and the physical properties that follow from it
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