Question

which element is a row 5 transition element? ir sr co mo

Explanation:

• Ir (Iridium): It is in row 6 of the periodic table.
• Sr (Strontium): It is an alkaline - earth metal in group 2 (s - block element), not a transition element.
• Co (Cobalt): It is in row 4 of the periodic table.
• Mo (Molybdenum): It is in row 5 and is a transition element (d - block element).

Answer:

Mo