Skip to main content

When does a period of the periodic table end?

The periodic table is the diagram used to organize all of the elements discovered in groups depending on a number of different factors. Elements, or atoms with different numbers of protons and electrons, are arranged in rows referred to as "periods." The first period begins with Hydrogen, the second with Lithium, and so on. 


Each element as the period progresses has one more proton and one more electron than the previous element, and these extra...

The periodic table is the diagram used to organize all of the elements discovered in groups depending on a number of different factors. Elements, or atoms with different numbers of protons and electrons, are arranged in rows referred to as "periods." The first period begins with Hydrogen, the second with Lithium, and so on. 


Each element as the period progresses has one more proton and one more electron than the previous element, and these extra protons and electrons give different electronegetivities, weights, and other properties. A row will start over once these properties repeat themselves, thus the element directly under each element shares similar properties as the one above them. This creates columns of similar elements such as the 2nd column which is made up by the Alkaline Earth Metals (all shiny, silvery-white, full S-electron orbital).


Another way to tell a row is about to start over is when you get to an element that has all of its valence electron orbitals filled. This means there is no more room for an electron to bond to in any orbital and it is considered a Noble Gas (Krypton, Neon, Helium, etc.). This marks the end of a row and the next element begins a new orbital as it fills an S orbital spot with an electron to match the one extra proton. 


Once again, a row will start over officially once similar properties start to repeat themselves. All of the first elements in the 1st column have similar qualities, thus they are organized as such, just like the 18th column which all mark the end of a row. Hope this helped!

Comments

Post a Comment

Popular posts from this blog

What is hyperbole in the story "The Gift of the Magi" by O. Henry?

The most obvious use of hyperbole in "The Gift of the Magi" occurs when the narrator describes Della's and Jim's evaluations of their two treasures—her long, luxuriant hair and his gold watch. Had the Queen of Sheba lived in the flat across the airshaft, Della would have let her hair hang out the window some day to dry just to depreciate Her Majesty's jewels and gifts. Had King Solomon been the janitor, with all his... The most obvious use of hyperbole in "The Gift of the Magi" occurs when the narrator describes Della's and Jim's evaluations of their two treasures—her long, luxuriant hair and his gold watch. Had the Queen of Sheba lived in the flat across the airshaft, Della would have let her hair hang out the window some day to dry just to depreciate Her Majesty's jewels and gifts. Had King Solomon been the janitor, with all his treasures piled up in the basement, Jim would have pulled out his watch every time he passed, just to see him plu
Post a Comment
Read more

How can I analyze Moon and Six Pence by Somerset Maugham?

In "Moon and Sixpence," loosely based on the life of Paul Gaugin, Maugham presents a study of the tension between the "civilized" life of 19th century Europe, and the lead character's desire to throw off the shackles of bourgeois life. Charles Strickland is a middle-aged English stockbroker with a wife and family. By abandoning his domestic life, Strickland commits what many in European society would consider a gross betrayal of one of the foundations of... In "Moon and Sixpence," loosely based on the life of Paul Gaugin, Maugham presents a study of the tension between the "civilized" life of 19th century Europe, and the lead character's desire to throw off the shackles of bourgeois life. Charles Strickland is a middle-aged English stockbroker with a wife and family. By abandoning his domestic life, Strickland commits what many in European society would consider a gross betrayal of one of the foundations of that society. His decision to e
Post a Comment
Read more

What are some literary devices in Macbeth, Act V, Scene 1?

Act V, Scene i of Macbeth certainly continues the imagery that is prevalent in the play with its phantasmagoric realm, as in this scene a succession of things are seen or imagined by Lady Macbeth. Imagery - The representation of sensory experience Lady Macbeth imagines that she sees bloody spots (visual imagery) on the stairs; she also smells blood (olfactory imagery): Here's the smell of the blood still. All the perfumes of Arabia will not... Act V, Scene i of Macbeth certainly continues the imagery that is prevalent in the play with its phantasmagoric realm, as in this scene a succession of things are seen or imagined by Lady Macbeth. Imagery - The representation of sensory experience Lady Macbeth imagines that she sees bloody spots (visual imagery) on the stairs; she also smells blood (olfactory imagery): Here's the smell of the blood still. All the perfumes of Arabia will not sweeten this little hand. Oh! oh, oh! (5.1.53-55) Hyperbole - Obvious exaggeration  There is also h
Post a Comment
Read more