2. Atoms & Elements

Which of the following correctly distinguishes the element iron (Fe) from nickel (Ni) on the periodic table?

How many protons does the element iridium (Ir) have?

Which of the following element symbols correctly represents the element potassium on the periodic table?

Which of the following is a two-letter chemical symbol for an element on the periodic table?

Which of the following is the chemical symbol for magnesium?

Which statement correctly describes the relationship between element 17 (Cl) and element 9 (F) on the periodic table?

Which element has the chemical symbol Ag?

Which of the following is the correct symbol for the element francium, which is located in period 7 of the periodic table?

Which element on the periodic table has 79 protons?

Which of the following is the correct chemical symbol for fluorine?

Which of the following is the correct chemical symbol for iron?

Which property is unique for each element on the periodic table?

Which of the following is the correct chemical symbol for tungsten?

Which two elements were first produced by Glenn Seaborg's group, and what are their chemical symbols?

Atoms of which element contain 25 protons?