Periodic Trend - Atomic Size (Radius) Explained!

The video explains atomic size, also known as atomic radius, and its significance in understanding atomic reactivity. It discusses periodic trends, noting that atomic size increases down the periodic table and from right to left. The video explains these trends by examining energy levels and the number of protons, using examples to illustrate how these factors affect atomic size. It emphasizes that energy levels are more significant than nucleus strength when comparing atomic sizes.

What is the relationship between atomic size and the periodic table?

Explain why atoms get bigger as you move down the periodic table.

How does the number of protons affect atomic size when moving from right to left on the periodic table?

What is the significance of energy levels in determining atomic size?

Compare the atomic sizes of rubidium and iodine based on their protons and energy levels.