Explanation:
Let us assume that volumes is equal to spheres volume of nucleus.
fm = femto meter = 
pm = pico meter = 
Hence, calculate the volume as follows.
V = 
= 
= 82.4481 
(cubic femtometers)
or, = 82
Now, we will calculate the volume of the atom as follows.
V =
= 
= 1436758.4 
(cubic picometers)
thus, we can conclude that volume of the nucleus is 82 and volume of the atom is 1436758.4 .
It is a metal
hope it helps
Answer:
D) CN⁻
Explanation:
Hund's Rule of Maximum Multiplicity state that electrons go into degenerate orbitals of sub-levels (p,d, and f ) singly before pairing commences. Hund's rule is useful in determining the number of unpaired electrons in an atom. As such, it explains some magnetic properties of elements.
An element whose atoms or molecules contain unpaired electrons is paramagnetic. i.e., weakly attracted to substances in a magnetic field.
On the other hand, the element whose atoms or molecules are filled up with paired electrons is known as diamagnetic, i.e., not attracted by magnetic substances.
According to the molecular orbital theory, the diamagnetic molecule is CN⁻ because of the absence of unpaired electrons.
Because it throws the earth off balance and if it does it often enough then it will soon add up.
