Question

click on the element in the periodic table to explore the atomic radii of elements from period 3 and group 17. fill in the missing values in the table so you can compare the atomic radii of the elements. after the table is filled in, compare the values in each column.
a=

b=

c=

Explanation:

Step1: Recall atomic radii trends

Atomic radii decrease across a period (from left to right) due to increasing nuclear charge pulling electrons closer.

Step2: Identify the atomic radii values

Looking up standard atomic radii values:

• Chlorine (\(Cl\)) has an atomic radius of \(0.99\ \mathring{A}\)
• Sodium (\(Na\)) has an atomic radius of \(1.54\ \mathring{A}\)
• Phosphorus (\(P\)) has an atomic radius of \(1.09\ \mathring{A}\)

Answer:

\(A = 0.99\), \(B = 1.54\), \(C = 1.09\)