Related Clues:

• It's found in a table
• I, for one: Abbr.
• Essential part
• Chem. table component
• Mercury, but not Mars
• Ca, Ga or Pa
• Constituent
• Component
• K-6, as a sch.
• Natural surroundings
• K, for one: Abbr.
• Pre-jr.-high
• Low-grade?: Abbr.
• K-6 sch.
• Hydrogen, e.g.