How many of the following are correctly matched? \( \mathrm{P} \) W...

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How many of the following are correctly matched?
\( \mathrm{P} \)
W)
\( \begin{array}{ll}\text { Element } & \text { Colour in flame test } \\ \mathrm{K} & \text { Violet/Lilac } \\ \mathrm{Na} & \text { Yellow } \\ \mathrm{Be} & \text { Crimson red } \\ \mathrm{Ca} & \text { Brick red } \\ \mathrm{Sr} & \text { Apple green } \\ \mathrm{Mg} & \text { No colour } \\ \mathrm{Rb} & \text { Red violet } \\ \mathrm{Cs} & \text { Blue } \\ \mathrm{Li} & \text { Crimson red }\end{array} \)
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