Facts About Hydrogen, Atomic Number One on the Periodic Table

Hydrogen is the element that is atomic number 1 on the periodic table. The element number or atomic number is the number of protons present in the atom. Each hydrogen atom has one proton, which means it has a 1 effective nuclear charge. Basic Atomic Number 1 Facts At room temperature and pressure, hydrogen is a colorless, odorless gas.While ordinarily classified as a nonmetal, the solid form of hydrogen acts like other alkali metals in the same column of the periodic table. Hydrogen metal forms under intense pressure, so it is not seen on Earth, but it does exist elsewhere in the solar system.The pure element bonds to itself to form diatomic hydrogen gas. This is the lightest gas, although it is not significantly lighter than helium gas, which exists as a monatomic element.Element atomic number 1 is the most abundant element in the universe. In terms of a sheer number of atoms, about 90% of atoms in the universe are hydrogen. Because the element is so light, this translates into around 74% of the universe by mass.Hydrogen is extremely flammable, but it doesnt burn without the presence of oxygen. If you were to place a lit match into a container of pure hydrogen, the match would simply go out, not cause an explosion. Now, if it was a mixture of hydrogen and air, the gas would ignite!Many elements can exhibit a variety of oxidation states. While atomic number 1 usually displays a 1 oxidation state, it can also pick up a second electron and exhibit a -1 oxidation state. Because two electrons fill the s subshell, this is a stable configuration. Atomic Number 1 Isotopes There are three isotopes that all have atomic number 1. While an atom of each isotope has 1 proton, they have different numbers of neutrons. The three isotopes are proton, deuterium, and tritium. Protium is the most common form of hydrogen in the universe and in our bodies. Each protium atom has one proton and no neutrons. Ordinarily, this form of element number 1 has one electron per atom, but it readily loses it to form the H ion. When people talk about hydrogen, this is the isotope of the element usually being discussed. Deuterium is a naturally occurring isotope of element atomic number 1 that has one proton and also one neutron. Since the number of protons and neutrons is the same, you might think this would be the most abundant form of the element, but its relatively rare. Only around 1 in 6400 hydrogen atoms on Earth are deuterium. Although its a heavier isotope of the element, deuterium is not radioactive. Tritium also occurs naturally, most often as a decay product from heavier elements. The isotope of atomic number 1 is also made in nuclear reactors. Each tritium atom has 1 proton and 2 neutrons, which is not stable, so this form of hydrogen is radioactive. Tritium has a half-life of 12.32 years.

True Love an Teenage Infatuation - 765 Words

True love and teenage infatuation are two completely different views of love. True love is a decision, a commitment to ones partner to make them happy, even if it comes with sacrifices. Even if one feels like they do not love the other person, staying together is what makes true love everlasting. On the other hand, teenage infatuation is based on emotional feelings alone. Feelings of physical attractiveness is what makes teenage infatuation temporary. The decision of whether or not William Shakespeares Romeo and Juliet is a play of about true love or teenage infatuation has been a highly debated topic among its readers. This play is thought widely to be about true love, but is really not about true love but instead about teenage infatuation. Readers can see that Romeo and Juliet is a play of teenage infatuation by looking at and examining Friar Lawrences comments to Romeo. Romeo comes to Friar Lawrences cell to convince him to marry Romeo with Juliet. Friar Lawrence asks him what change is here, is Rosaline, that thou didst love so dear, so soon forsaken?. The Friar explains to Romeo that young men like Romeo love not truly in their hearts, but in their eyes(Shakespeare, 2.3.65-68). Friar Lawrence is astonished at the fact that Romeo can change his feelings towards someone so quickly. Romeo told Friar Lawrence that he was madly in love with Rosaline, a person who he said only examined from a distance. How Romeo went from loving Rosaline to Juliet soShow MoreRelatedHow Does Shakespeare Portray Love in Romeo and Juliet?1638 Words   |  7 Pagesdifferent aspects and types of love in many ways. The obvious love is the fateful love between Romeo and Juliet although the play also displays platonic love, maternal love and aspects of adolescent love. The first kind of love shown in the play is teenage love through Romeo. Montague tells us that Many a morning hath he (Romeo) been seen... adding to the clouds more clouds with his deep sighs. 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Spectroscopic Analysis of a Sunscreen Product free essay sample

In this lab, our concept is to find the extinction coefficient â€Å"? † for a specific sunscreen with a sun protection factor (SPF), we are using brand: NO-AD SPF 15 for this experiment, our extension coefficient â€Å"? † value is to be 482. 04 cm2/g. Objective: Our objective with this experiment is to find the relation of sun block with the extension coefficient by measuring the absorbent rate of UV rays the sunscreen can absorb. And how it can absorb harmful waves that emit from the sun. Ultra Violet (UV) rays are harmful for the skin if person stays for too long in the sun. It can cause damage to the skin and may lead to cancer. Also, to relate other sunscreens products to another, as band name price and how well do they do once exposed to the suns UV rays. Theory: As Beer’s Law indicates: A= (? ) (l) (C) Where is A is the Absorbance, is proportional to C, the concentration of solution, the higher the concentration the higher the absorbent. We will write a custom essay sample on Spectroscopic Analysis of a Sunscreen Product or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page ‘A† is also proportional to (l), the length of tube used, the longer the tube, the more molecules in the solution can absorb rays , as they are subjected to more rays. The absorption rate increased for the concentrated solutions and gradually decreased from tube 1 to tube 6, that means the more particles where intercepting the path of UV rays in the most concentrated solution (tube 1)where A=0. 24, and in tube 6(most diluted) the absorption rate was 0. 056 And in our wavelength vs. absorbent plot, we see that most of the absorbency occurred when the wave length is around 290nm and 300 nm That means the concentrated solution with sunscreen absorbed most of the UV rays and energy, therefore blocking it from passing through. Question UVA, UVB, UVC are all in the family of Ultra Violet Rays, which are electromagnetic radiation with wavelength shorter than a visible light, because the spectrum starts at a wavelength shorter than wavelength we identify as color. UVA, UVB, UVC are each with a different wavelength. Type of UVWavelength UVA , long wave, also called black light400nm – 320 nm UVB , medium wave320nm – 280 nm UVC , shortwaveBelow 280nm According to SPF given, it looks like they are consistent, as most of the absorbency happen around 300nm- 320nm (UVB, Medium Wave), but all with different rate of absorption, TypeMax absorbency Coppertone 300. 25 Kroger kids 450. 48 NO-AD 450. 60 Coppertone 150. 65 NO-AD 150. 43 And according to other groups results and ours in calculating the extinction coefficient (? ), the higher the SPF the higher the (? ) as shown SPF? Value 15880 301159. 4 15482. 04 301146 And yes we did expect a relationship between ? and SPF, as per Beer’s Law A= (? ) (l) (C), and relationship is proportional (A ? ?), the higher ? , the higher the SPF the more absorbency occurs for UV rays.