Question

1. arrange the following metals in order from least reactive to most reactive using conclusions you just made. ag, mo, fr, na, rb, cs

Explanation:

Step1: Recall metal reactivity trends

In the periodic table, metal reactivity increases down a group and from right - to - left across a period.

Step2: Locate the metals in the periodic table

Silver (Ag) is in Group 11, Period 5. Molybdenum (Mo) is in Group 6, Period 5. Francium (Fr) is in Group 1, Period 7. Sodium (Na) is in Group 1, Period 3. Rubidium (Rb) is in Group 1, Period 5. Cesium (Cs) is in Group 1, Period 6.

Step3: Compare reactivity

Non - alkali metals (Ag and Mo) are less reactive than alkali metals (Fr, Na, Rb, Cs). Among non - alkali metals, Ag is less reactive than Mo. Among alkali metals, reactivity increases down the group. So, Na < Rb < Cs < Fr.

Answer:

1. Ag
2. Mo
3. Na
4. Rb
5. Cs
6. Fr