decreases by 2. increases by 1. decreases for gases. increases for metals.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The Periodic Table is arranged in rows and columns. From left to right along a row, the atomic number in each column
Possibilities:
- decreases by 2.
- increases by 1.
- decreases for gases.
- increases for metals.

increases by 1.