Radius and Diameter

Which of these elements in group 1A has the largest atomic radius?

• cesium

• rubidium

• potassium

• sodium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The atom with the largest atomic radius in Period 4 (row 4) is - 

• K

• Kr

• Fe

• Fe

Tags

NGSS.HS-PS1-1

Which atom has the largest atomic radius?

• potassium

• rubidium 

• francium

• cesium

Of the halogens, which has the smallest radius?

• F

• Br

• He

• At

Tags

NGSS.HS-PS1-1

What is the relationship between the radius and diameter of a circle?

• The radius is twice the diameter.

• The diameter is twice the radius.

• The radius is half the diameter.

• The diameter is half the radius.

If the diameter of a circle is 10 cm, what is the radius?

• 5 cm

• 10 cm

• 15 cm

• 20 cm

Which of the following formulas correctly represents the diameter of a circle in terms of its radius?

A scientist measures the diameter of a spherical cell to be 6 micrometers. What is the radius of the cell?

• 1 micrometer

• 2 micrometers

• 3 micrometers

• 6 micrometers

In a physics experiment, a ball rolls in a circular path with a radius of 4 meters. What is the diameter of the path?

• 2 meters

• 4 meters

• 8 meters

• 16 meters

If the radius of a circle is tripled, how does the diameter change?

• It remains the same.

• It is doubled.

• It is tripled.

• It is quadrupled.