Select the correct answer.

Which element is more reactive than rubidium (Rb)?

A.
aluminum (Al)
B.
cesium (Cs)
C.
strontium (Sr)
D.
beryllium (Be)

Respuesta :

Answer:

B.cesium (Cs)

Explanation:

Reactivity for metals is that it increases as you go down and decreases as you go right.

Answer:strontium (Sr)

Explanation: