Using the model of the periodic table, which two elements pictured have similar chemical properties?
![Using the model of the periodic table which two elements pictured have similar chemical properties class=](https://us-static.z-dn.net/files/dbf/b58b1318087bcfa22446564d25755c27.png)
Answer:
1 and 3
Explanation:
The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.