Explain ionic and covalent bonding ( i need long answers ) 49 points for an answer .. be worth it!

Ionic bonding:

An ionic bonding occurs when cations (positively charged) and anions (negatively charged) attract each other. In ionic bonding, atoms either loose electrons to become positively charged, in the case of metals, or gain electrons to become negatively charged, in the case of nonmetals. Molecules formed by ionic bonds are called salts.

Covalent bonding:

A covalent boding is the sharing of a pair of valence electrons between two atoms. When only one valence electron (electron in the valence shell (outermost shell)) is shared, the we call that a covalent bond. When two valence electrons are shared we call that a double covalent bond, such as the one found in an oxygen molecule.

Hope it helped,

BioTeacher101

the answer is 1. photosynthesis. glad to

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.