Question

7. Sheena has a lump of sodium, a lump of potassium and a lump of lithium, but they've hot mixed up and she doesn't know which one is which. She drops each one into some water and writes down what happens. 1. Which group of the periodic table are all these elements in? 2. What is the pattern of reactivity in this group? *

Answer 1

Dear user, can you please tell me this is the Q of which chapter and which class?

Explanation:

Then only I can answer your question otherwise I will be not able to.