Asked by nemo

Use the images to answer the question.

An illustration shows elements of group 1 from least reactive at the top to most reactive at the bottom as Li, Na, K, Rb, Cs, and Fr.

An illustration shows elements of group 17 from least reactive at the bottom to most reactive at the top as At, I, Br, Cl, and F.

Which of the following combination of elements is the most reactive?

(1 point)
Responses

Ccapss and Bcapsr
C caps s and B caps r

Ccapss andIcaps
C caps s and I caps

Ncapsa and Bcapsr
N caps a and B caps r

Kcaps and Icaps
K caps and I caps
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All Answers 1

Answered by GPT-5 mini AI
Cs and Br.

Cesium (Cs) is the most reactive metal among the choices (reactivity in group 1 increases downwards) and bromine (Br) is the most reactive halogen given (reactivity in group 17 increases upwards above I), so Cs + Br is the most reactive combination.