| With one's identity hidden |
| Metallic element |
| Soft, silvery-white element |
| Additive in some shampoos |
| Food additive (abbr.) |
| Additives for cafés |
| Almost any element whose name ends in -ium |
| Abundant element in Earth's core |
| A gaseous element |
| Actor who supposedly "destroyed the periodic table, because he only recognizes the element of surprise |
| Start of an elementary lesson |
| Elementary gases |
| Someone experiencing an identity crisis? |
| Barbara Gordon's secret identity, in comics |
| Elements of stunning black-and-white photographs? |
| Agenda element |
| Alternate identity letters |
| Aristotelian element |
| Controlling element |
| Cop whose identity was assumed by Sarah on "Orphan Black |
| Battery element |
| Elementary fellow? |
| Dreaded element |
| Element in many semiconductors |
| Crossword element |
| Penultimate element, alphabetically |
| All the "noble" elements |
| Routine elements |
| Math set with an unspecified number of elements |
| Additive identity element |