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What is the third alkali metal ​

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6 votes

Answer:

potassium

Step-by-step explanation:

User Philipp Ludwig
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5 votes

Answer:

potassium

The third alkali metal is K (potassium). The atomic number of K (potassium) is 19. Thus, the atomic number of third alkali metal is 19

Step-by-step explanation:

User Scrambler
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