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22-02-2018
Chemistry

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Which of these elements is an alkaline earth metals?

a. hafnium (Hf)

b. radon (Rn)

c. silicon (Si)

d. sulfur (S)

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egipson egipson

22-02-2018

None of these are Alkali Earth metals. Alkali earth metals consist of Beryllium [Be] Magnesium [Mg] Calcium [Ca] Strontium [Sr] Barium [Ba] Radium [Ra]

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