Consider the following element combinations. classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent qualitatively based solely on each element's position on the periodic table. do not conduct calculations. drag the appropriate items to their respective bins: ionic | polar covalent | nonpolar covalent (p and i | fe and o | s and cl | s and s | br and br | o and cl | be and cl | al and n)

An ionic bond is formed by the transfer of electrons from one atom to the other. It is usually formed between a metal + non-metal.

A covalent bond is formed by sharing of electrons between two atoms. It is formed between two nonmetals. A polar covalent bond is formed between 2 non-metals which differ in their electronegativities. In contrast, in a non-polar covalent interaction the two atoms could either be the same or have very close electronegativities.

1) P and I : Both non-metals with different electronegativities= Polar Covalent

2) Fe and O: Metal + non-metal = Ionic

3) S and Cl: Both non-metals with different electronegativities= Polar Covalent

4) S and S: Both non-metals and the same atoms = Non-polar Covalent

5) Br and Br: Both non-metals and the same atoms = Non-polar Covalent

6) O and Cl: Both non-metals with different electronegativities= Polar Covalent

7) Be and Cl: Metal + non-metal = Ionic

8) Al and N: Metal + non-metal = Ionic

Bond between Fe and O is an ionic bond, between S and S & Br and Br is a non polar covalent bond and the bond between S and Cl, O and Cl, Be and Cl and between Al and N is a polar covalent bond.  

Further explanation:

Bond between P and I:

The bond between phosphorous and iodine is a polar covalent bond.  

Bond between Fe and O:

The bond between iron and oxygen is an ionic bond.

Bond between S and Cl:  

The bond between sulpher and chlorine is a polar covalent bond.

Bond between S and S:

The bond between two sulpher atoms is a non polar covalent bond.  

Bond between Br and Br:

The bond between two bromine atoms is a non polar covalent bond.  

Bond between O and Cl:

The bond between an oxygen and chlorine atom is a polar covalent bond.  

Bond between Be and Cl:

The bond between a beryllium and chlorine is a polar covalent bond.  

Bond between Al and N:

The bond between an aluminum atom and nitrogen atom is a polar covalent bond.  

Ionic Bond:

Complete transfer of electrons forms ionic bond. It forms between a metal and a non-metal. Metals can easily donate its electron while the non-metal can accept the electron.  

Covalent Bond:

Mutual sharing of electrons forms covalent bond. It is usually formed between non metals.  

It is of two type polar covalent and non polar covalent bond.  

Polar Covalent Bond:

Polar covalent bond is formed when both the bonding atoms are different and there is unequal distribution of electrons between them.

Non polar covalent bond:

Non polar covalent bond is formed between two same atoms. In this type of bonding there is equal sharing of electrons between bonding atoms.

Answer details

Subject: Chemistry

Level: High school

Key words

Learn more to evaluate

according to the u.s. department of agriculture, the label of "certified organic" comes with a set of highly regulated standards for environmental stewardship and resource conservation. some of these include maintenance and improvement of soil quality, prevention of ground and surface water contamination, greenhouse gas regulation, encouragement of biodiversity and conservation of water and energy (see references 1). organic practices integrate natural methods such as mulching, plant diversity, native and adapted plants, crop rotation and the introduction of beneficial insects to control pests without synthetic pesticides.

environmental implications of pesticides

synthetic pesticides ensure high crop yields. while effective in achieving this goal, pesticides contaminate soil, air, ground and surface water, as well as the plants and animals that come into contact with these contaminated sources. freshwater and marine organisms are particularly susceptible to pesticides through agricultural runoff. pesticides also reduce soil fertility (necessitating the use of synthetic fertilizers) and can travel far from the original source, contaminating water and air hundreds of miles from the location of application (see references 2).

health implications of organics

although a subject of particular debate, many recent findings show that organic food is healthier than conventionally grown food. according to the usda, an extensive european union-funded study found that organically grown foods contain more beneficial compounds, such as the vitamins and antioxidants needed to combat many diseases (see references 5). organic milk, meat and eggs are regulated to ensure they are free of hormones administered to conventional livestock and poultry.

health implications of pesticides

pesticides affect human health in three ways: through skin contact, inhalation and ingestion. acute and long-term exposure to pesticides can cause serious health problems for farmers who apply them. the majority of other people are affected by drinking contaminated water and eating contaminated marine life (see references 3). pesticides have been linked to neurological disorders, endocrine and reproductive disorders, immune system deficiencies and cancer. according to the world health organization, acute pesticide poisoning (app) is responsible for significant annual mortality, especially in developing nations (see references 4).

other important considerations

not every small farm or business owner can afford the costly certification process required to be considered "certified organic," even if the farm is not using chemicals. "transitional" farms include those that once used chemicals and are now transitioning to organic-only production. in addition, though organic farming methods offer obvious environmental benefit, an organic apple shipped from around the world creates a different set of environmental problems. locally grown food (particularly locally grown, organic food) is key in sustainable food production.

the product of the pressure and volume is also constant