The radius of a potassium
atom is 0.227 nm. Express this
radius in the unit centimeters.

The radius of a potassium atom is 0.227 nm. In centimeters, the radius of potassium is 2.27 × 10⁻⁸ cm

Potassium is an element on the periodic table with the atomic number 19. It has white, lustrous, and shiny color. They exhibit a low melting point and are a great conductor of electricity.

Given that:

The radius of a potassium atom is 0.227 nm

Using the standard conversion analysis:

Since 1 nanometer (nm) = 1.0 × 10⁻⁷ centimeters (cm)

Then, 0.227 nm is:

=

= 2.27 × 10⁻⁸ cm

Therefore, we can conclude that the radius of a potassium atom in centimeters is 2.27 × 10⁻⁸ cm

Learn more about conversion rates here:

link

0.227 nm can also be written as

0.227 * m

and we know that 1 cm = 1m * 100

so we will multiply by with 100:

0.227 * cm

2.27 * cm

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.