Question

rank the metals from most reactive (1) to least reactive (3) silver strontium technetium

Explanation:

To solve this, we use the reactivity series of metals. Strontium (Sr) is an alkaline earth metal, highly reactive. Technetium (Tc) is a transition metal, less reactive than Sr but more than Silver (Ag). Silver (Ag) is a noble metal, least reactive among the three.

Step 1: Determine reactivity of Strontium

Strontium is in Group 2, very reactive. So rank = 1.

Step 2: Determine reactivity of Technetium

Technetium is a transition metal, reactive but less than Sr. Rank = 2.

Step 3: Determine reactivity of Silver

Silver is a noble metal, least reactive here. Rank = 3.

Answer:

Silver: 3
Strontium: 1
Technetium: 2