<u>The statements which are indicative of a covalent bond are as follows -:</u>
Electron movement is concentrated somewhere between the two bonded nuclei.
The greatest probability of finding the shared electrons is in the area of orbital overlap.
The valence electrons involved in the bond are moving solely around the nucleus of the atom with the higher electron affinity.
Explanation:
Among the given four statements, three statements are correct, the statement- "Electron density is focused on one element in the bond, generally resulting in the formation of a crystalline substance." is incorrect as In ionic bonds, crystalline formation takes place.
<u>Somewhere between the two bonded nuclei, electron movement is centered. --:</u> Covalent bonds are a class of chemical bonds in which valence electrons are shared between two atoms, typically two non-metals. The formation of a covalent bond helps the non-metals to obey the octet 's law and thus become more stable.
<u>The greatest probability of finding the shared electrons is in the area of orbital overlap.-</u>: A pi bond (π bond) is a type of covalent bond arising from the overlap of two p orbitals side by side.
<u>The valence electrons involved in the bond are moving solely around the nucleus of the atom with the higher electron affinity.- : </u>As pairs of electrons are exchanged by atoms, covalent bonding happens. In order to achieve further stability, which is gained by forming a complete electron shell, atoms can covalently bond with other atoms. Atoms can fill their outer electron shell and achieve stability by exchanging their outermost (valence) electrons.
Hence ,<u> the correct option is D (I,II and IV )</u>
Our cells are not poisoned to death because it is metabolized by our organs.
Explanation:
Toxins are any chemical products that damages the functioning of our body.
To be more specific, human body do not produce any toxins. They only discrete the waste materials that are easily secreted by our body through the metabolic activities.
Organs like liver and kidneys are responsible for fighting against the harmful waste products and toxins by throwing it out from our body.
There isn't a specific 'most common eating disorder', but most people would have a disorder known as binge eating disorder, which is eating more than necessary. The other top 2 include anorexia nervosa or bulimia nervosa.