The radius of a potassium atom is 231 pm. how many potassium atoms would have to be laid side by side to span a distance of 4.77 mm?

2.06× atoms

Explanation:

The radius of potassium atoms= 231 pm

convert parts per million into m i.e, by multiplying by

= 231×

Potassium atoms would have to laid down at a distance apart= 4.77 mm

convert millimeter into meter i.e, by multiplying by

= 4.77 ×

Now, we have to find the number of potassium atoms,

Number of potassium atoms=

Number of potassium atoms=2.06×

Number of potassium atoms=  2.06× atoms

Hence, the correct answer is  2.06× atoms

its weight is greatest on earth

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.