What is the name of the element with 82 protons (atomic number $82$)?

Which element has $53$ protons (atomic number $53$)?

Which element has 30 protons in its nucleus?

Which element (neutral atom) has 18 electrons?

Which of the following is a valid two-letter element symbol from the periodic table?

Periodic Table: Element Symbols — Which element is a major component of chlorophyll at the center of its porphyrin ring?

On the periodic table, the symbol $So$ refers to which element?

On the periodic table, which element has the symbol $T$?

Which element is located in Group 2 (alkaline earth metals) and Period 3 of the periodic table?