Part
Locate the row containing lithium (LI), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs). Look up
these elements in the periodic table C, and click each element to reveal its properties. Explain why
Mendeleev might have grouped these elements together.

Part Locate the row containing lithium LI sodium Na potassium K rubidium Rb and cesium Cs Look up these elements in the periodic table C and click each element class=