The zigzag line in the periodic table separates ....... from .............
Which of the following lines in the periodic table separates metals from non-metals?
Write a note on position of metals and non-metals in the periodic table? [5 MARKS]
Answer the following:
1. How could the modern periodic table remove various anomalies of Mendeleev’s periodic table?
2. In the modern periodic table, which are the metals, non-metals and metalloids among the first twenty elements?
3. What are the demerits of Mendeleev’s periodic table?
4. Define atomic size. How does it vary in a period and in a group?