The REACTIVITY of Group 1 metals (1)...as you go down the group, because the OUTERMOST electron gets (2) from the NUCLEUS. 1: increases; 2: closer 1: decreases; 2: closer 1: increases; 2: further 1: decreases; 2: further

## Step 1:Group 1 metals are also known as alkali metals. These metals are located on the left side of the periodic table. ## Step 2:As we move down the group (from top to bottom), the reactivity of these metals increases. This is because the metals tend to lose electrons to form positive ions. ### The formula for this process is: ** **## Step 3:As we move down the group, the outermost electron is farther from the nucleus. This is because each subsequent element in the group has an additional electron shell. The further the outermost electron is from the nucleus, the less tightly it is held by the positive charge of the protons in the nucleus. This makes it easier for the metal to lose this electron and thus become more reactive.