Periodic Properties

The ________ metals are a series of elements comprising Group 1 of the periodic table: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

One 1 2 3 4 5 6 7 8 9
Two 10 11 12 13 14 15
Three 16 17 18 19 20
Four 21 22 23 24 25 26 27
  
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