What is similar about the outer shell of electrons in the Halogen Family?

they have 7 electrons

Explanation:they need one more to competete their valence shell

and halogens are highly reactive so they have 7 valence electrons hope this helps god bless

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

the ratio of the conjugate base to the acid required to attain the desired ph.