There are three fundamental rules that we use in writing electronic configurations for atoms and molecules.The configuration shown below (for oxygen)violates one of these rules.Which one? 
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Target Income
The specific amount of net income that a company aims to achieve for a certain period.
Investment Turnover
Investment turnover measures how efficiently a company generates sales from its investment in fixed assets.
Profit Margin
The percentage of revenue remaining after all expenses, taxes, and costs have been deducted from total sales.
Return on Investment
A measure used to evaluate the efficiency or profitability of an investment, calculated by dividing the net profit by the cost of the investment.
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