The diagram shows the electron configuration of an atom of an element for the electrons in the s and p orbitals.
What is the group number of the element in the periodic table?

17
16
2
1

The given element is F and the Fluorine is present in the group 7A, also termed as 17.

Option A

Explanation:

It is known that periodic table comprises of periods and groups. In other words, the elements in periodic table can be classified based on their arrangement or positioning in the periods and groups. Mostly groups are used for categorizing the elements in the periodic table. So each group consists of elements present in a same column. And those elements are said to have same number of valence electrons. Even the groups are numbered based on the valence numbers of elements present in that group.

Like, the elements in s blocks are termed as group 1 , group 2 depending upon the column of elements containing 1 valence electron and 2 valence electron, respectively.

In the present problem, the electronic configuration can be written as 1s² 2s² 2p⁵. So this means the number of valence electrons is 7.

It is known that in periodic table there are two groups have the name containing 7 that is group 7 and group 7 A. Among the group names given in the options and the electronic configuration, it can confirmed that the group number of the given element is 7A or 17 (7+10=17). As these group have p valence shells, so it is also termed as p block elements. And the group number of p-block elements can also be written as addition of 10 to the valence electrons. So 7+10 = 17 is obtained as group number for Group 7 A.

Thus, the given element is F and the Fluorine is present in the group 7A, also termed as 17.

they are both synthetic elements

explanation:

d

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.