Why does reactivity increase down group 1?

Answer and explanation

Correct answer: A. The outer electron is further from the nucleus and is lost more easily

  1. Step 1: Atoms get bigger down the group. Step 2. There is less attraction, so the electron is lost more easily. Answer: The outer electron is further from the nucleus and is lost more easily. Why not the others: Closer electrons would be held more tightly.

Practise more Atomic Structure and Periodic Table.

Free questions with an explanation for every one, and full timed UK GCSE mock tests.