Question

how many rows and column are these in mordern periodic table. Zno+ Zn+CO​

Answer 1

Answer:

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are labeled at the top of each column.

Explanation:

⚡️ The Modern Periodic Table has eighteen vertical columns and seven horizontal rows.

⚡️ The eighteen vertical columns are termed as ''GROUPS" & the seven horizontal rows are termed as ''PERIODS".