Questions

No improvement required. Sentence is idiomatically correct.

Ionic bonding is a type of chemical bond in which valence electrons are lost from one atom and gained by another.. This bond generates two oppositely charged ions.

In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

Example ::

One example of an ionic bond is the formation of sodium fluoride, NaF, from a sodium atom and a fluorine atom. In this reaction, the sodium atom loses its single valence electron to the fluorine atom, which has just enough space to accept it. The ions produced are oppositely charged and are attracted to one another due to electrostatic forces.

Anaerobic glycolysis is the transformation of glucose to lactate when limited amounts of oxygen (O2) are available. 

Hence, Anaerobic glycolysis occurs without oxygen.

Beta is the measurement of the systematic risk of the market.

 A Lighthouse

HIV is a virus that damages the immune system. HIV is a lifelong condition, and without treatment, a person with HIV can develop AIDS.