Question

*Which of the following has the smallest size?* 1️⃣ Lithium 2️⃣ Boron 3️⃣ Carbon 4️⃣ All are equal​

Answer 1

Answer:

4

Explanation:

Answer 2

Carbon has the smallest size among the following elements.

• As we move from left to right across a period of elements the atomic size decreases.
• Number of electrons in shell increases, left to right.
• At the same time protons get added to the nucleus by making it more positively charged.
• The Z-effective of carbon is comparatively more than Boron and Lithium, So the atomic size of carbon is less than Lithium and Boron.