How do we use the flame test to identify certain elements?

Answer 1

You have not quoted a single element........

All of these species are ionic solids containing at least 2 elements.

In the flame lab test, you are reducing the metal ions back to metal atoms, and sometimes the metal atom is oxidized to an ion, which oxidation gives characteristic colours in the visible.

I suggest you look up the appropriate chapter of your text, which can explain it much better than I can. In this experiment you interrogate the spectra of #"atoms"# NOT #"ions"#.

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Answer 2

Natalie Anton

The flame test involves heating a sample of a substance in a flame and observing the characteristic color emitted. Each element produces a unique color when heated, allowing for identification based on the observed flame color.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.