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 why do nonmetals tend to form anions

why do nonmetals tend to form anions

Non-metals tend to form anions. Because the non-metal comes from the right hand side of as we face it, its nuclear charge is very poorly shielded by its INCOMPLETE valence electronic shell, and this results in the well-known contraction of atomic radii across the Table from left to right. Halogen and chalcogen atoms thus typically form, and ions. On the other hand, once a valence shell is completed, the full valence shell shields the nuclear charge fairly effectively, so that the next electron is added to the a more distant electornic shell. The result? (i) Atomic radii decrease across the Period from left to right, AND (ii) metals tend to form CATIONS, and (iii), in answer to your specific question, non metals tend to form anions: i. e. oxides; sulfides; phosphides; nitrides; halides.

 why do parts of my body twitch randomly

why do parts of my body twitch randomly

Hepatorenal syndrome (HRS) is a type of progressive kidney failure seen in people with severe liver damage, most often caused by. As the kidneys stop functioning, toxins begin to build up in the body. Eventually, this leads to liver failure. There are two forms of HRS. Type 1 HRS is associated with rapid kidney failure and an overproduction of creatinine. ...

 why is powdered limestone used in chimneys

why is powdered limestone used in chimneys

Powdered limestone can be used in power station chimneys to remove acidic gases. or. powdered limestone can be added to soils or lakes to reduce acidity. What is powdered limestone?. Explain why powdered limestone is also used in the chimneys at power stations? aqa worksheet hehe Edit. Share to: Rickygirl. Why is powdered limestome used in chymneys at power. Power stations generate electricity,. Why is powdered limestone used in the chimneys at power stations?. to make precipitated calcium carbonate, a fine powder used in coatings for. burning of coal in power stations. of limestone. Calcium carbonate is also used: main purpose of limestone. Why is powdered limestone used in the chimneys of power stations. Powdered lime stone is Б Powdered limestone is used as a dust suppressant in.

 why do we need to recycle batteries

why do we need to recycle batteries

What's all the fuss about batteries and recycling? A new EU directive decrees that, by 2016, 45% of all batteries sold will have to be collected rather than dumped or burned. At least half of the collected batteries will have to recycled. By 2008, every neighbourhood must have a battery collection scheme. Why is it important to recycle batteries? Batteries contain various hazardous metals such as lead, mercury, cadmium, zinc, manganese and lithium. It can be damaging to the environment to bury them. Burning batteries also causes atmospheric pollution. Campaigners also point out that it makes no sense to bury these limited resources in some parts of the world while mining them in others at considerable environmental cost. What is the UK's record on recycling batteries? Very poor. Less than

 why was the atomic bomb dropped on hiroshima and nagasaki

why was the atomic bomb dropped on hiroshima and nagasaki

On August 6, 1945 the US dropped an atomic bomb (Little Boy) on Hiroshima in Japan. Three days later a second atomic bomb (Fat Man) was dropped on the city of Nagasaki. These are the only occasions nuclear weapons have ever been used in war. Many reasons are given as to why the US administration decided to drop the atomic bomb on Hiroshima and Nagasaki. Reasons include the following: The United States wanted to force Japan's surrender as quickly as possible to minimize American casualties. The United States wanted to use the world's first atomic bomb for an actual attack and observe its effect. Given all of these reasons, the US was in quite a hurry to drop the bomb. Shortly after successfully testing history's first atomic explosion at Trinity, New Mexico, on July 16, 1945, the order to

 why do the marines say semper fi

why do the marines say semper fi

There are several potential sources from which the word "oorah" originated. The term may have been derived from the phrase "vur ha" translated as "strike" or the word "urakh" meaning "forward". It was used as a battle cry of the army and adapted as a battle cry "ura". According to Jean Paul Roux the word "Hurrah" comes from Old Turkic, in use until medieval times. In his book, History of Turks he states: "For example, while attacking to their enemies, they (Turks) used to shout "Ur Ah! " which means "Come on, hit! " (in modern Turkish "Vur Hadi! ") Then this exclamation turned into "Hurrah! " in [the] West. The difference represents diachronic change in the phonology and verbal usage in Turkish. The verb for "to hit" or "to strike" was urmak, which became vurmak in Modern Turkish.

 why do rocks look different from one another

why do rocks look different from one another

The rock cycle is the natural process in which rocks transform from one rock type into another rock type over time, a type of natural recycling. Igneous rocks, which are formed from magma cooling underground, or lava above ground are formed from previous igneous, metamorphic, or sedimentary rocks which have become melted, usually as a result of plate collision and subduction. ------- When these igneous rocks are exposed to weathering and erosion, they break down into smaller particles that are transported by wind and water to a place of deposition, where they can form into sedimentary rock strata, through a process of lithification, where excess water is squeezed out by overburden pressures and the particles are cemented together by various minerals precipitating out of solution. ...

 why do we have freedom of press

why do we have freedom of press

In the days after the shooting of Michael Brown, a number of journalists were detained, searched, or arrested as they attempted to cover the story, while many others reported being harassed, questioned, and threatened by police as well as by protesters and community members. Review the First Amendment Before you explore the particular experiences of journalists in Ferguson, review the freedoms guaranteed by the First Amendment by examining the text of the amendment itself. Ask students to think about why freedom of speech and freedom of the press are so essential in a democracy. Have students participate in a based on the following prompt: Thomas Jefferson wrote, БOur liberty depends on the freedom of the press, and that cannot be limited without being lost. Б What do you think he meant?

 why do we not eat red meat on good friday

why do we not eat red meat on good friday

I don t agree that red meat represents the body of Christ, more that it represents luxury. Some Christians will fast by avoiding luxury foods, including red meat (in fact, really strict ones will avoid all animal products on fast days). Since Good Friday is the most solemn day in the Christian calendar, it s the most widely observed fast day as well, but by no means the only one. ...

 why was mary 1 known as bloody mary

why was mary 1 known as bloody mary

While King Henry VIII lived, his greatest fear was dying without a male heir to the throne. As it turns out, he needn t have worried, for when he died in 1547, King Henry was succeeded by his son Edward VI. But the new King Edward was very frail and sickly boy of nine, and in just six short years he succumbed to his illness, bringing his reign to an end and leaving the throne unoccupied once again. Ideally, Edward should have been succeeded by his elder half-sister, Princess Mary, who was the daughter of Henry VIII by his first wife, Catherine of Aragon. But there was one problem unlike the Protestant King Edward, Princess Mary was a practicing Catholic, and her ascension would set the English Reformation back by years. To keep Mary from the throne, Edward nominated his cousin, Lady Jane

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