Electron configuration elements (atoms) and ions

Solution:- Atomic number of F is 9 and it has 9 electrons. It's electron configuration is:-

Atomic number of is 9 and it has 10 electrons. This ion is formed when F accepts one electron to gain nearest noble gas electron configuration.

Atomic number of O is 8 and it has 8 electrons. It's electron configuration is:-

Atomic number for is 8 and it has 10 electrons. This ion is formed when O accepts two electrons to gain nearest noble gas electron configuration.

Atomic number for Na is 11 and it has 11 electrons. It's electron configuration is:-

Atomic number for is 11 and it has 10 electrons. It loses one electron from it's outer most shell to look like it's nearest noble gas.(Ne)

It's electron configuration is:-

Atomic number of Ca is 20 and it has 20 electrons. It's electron configuration is:-

Atomic number of is 20 and it has 18 electrons. It loses two electrons from it's outer most shell to look like it's nearest noble gas.(Ar)

It's electron configuration is:-

answer; /// i do believe that the correct answer is (c)nuclear bond

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .