Question

प्रश्न 16. आधुनिक आवर्त सारणी में बायीं से दायीं ओर जाने पर
परमाणु साइज घटता जाता है। क्यों?​

Answer 1

Answer:

due to increase in effective nuclear charge

Explanation:

Answer 2

Explanation:

nos of electrons increases in outer shell that cause in increase in electrostatic force b/w nucleus and electrons that results decrease in atomic size .