Found 28 Articles for Elements of the Periodic Table

Ununoctium

Praveen Varghese Thomas
Updated on 17-Apr-2023 15:15:23

117 Views

Introduction Ununoctium is the temporarily given IUPAC name which helps to identify the chemical element. Scientists know very little about it; however, it is considered as super heavy element with an atomic number of 118. The atomic number and atomic mass of the discovered element is the highest. What is Ununoctium? The former name of element 118 is Ununoctium, which is also known as the eka-radon. Ununoctium is a temporary IUPAC name for the synthetic element and it is super heavy non-metal. It is not free in the planet and hence, called as the artificial element. The term ununoctium is ... Read More

Ununpentium

Praveen Varghese Thomas
Updated on 17-Apr-2023 14:47:15

105 Views

Introduction Ununpentium is one of the newest members of the periodic table. As it does not have any kind of permanent name at the time of discovery, scientists decided to name it Ununpentium, which is a combination of Latin and Greek words means one-one-five with is the atomic number of 115. The atomic number of the element is referred to as the number of protons is contained by the nucleus of the element. What is Ununpentium? The Ununpentium is a typically heavy chemical element and produced artificially which cannot be found freely in nature. It is also known as ... Read More

Ununseptium

Praveen Varghese Thomas
Updated on 17-Apr-2023 12:12:51

297 Views

Introduction Ununseptium is an artificially created element found in the periodic table and the chemical name of this element is Tennessine symbolised as Ts. It was first invented in the year of 2010 in a Russian laboratory. In the periodic table, it is placed in the group of p-block elements and group number is 7. Therefore, it is classified as a halogen. Ununseptium is solid at room temperature. It has four isotopes such as: $\mathrm{^{291}Ts, \: ^{292}Ts, \:^{293}Ts, }$ and $\mathrm{^{294}Ts}$. What is Ununseptium? Ununseptium is a recently discovered component that is placed in 117 in the periodic table. It ... Read More

Uranium

Praveen Varghese Thomas
Updated on 17-Apr-2023 11:42:27

81 Views

Introduction Uranium was first isolated by the French chemist Eugène-Melchior Péligot, in the year 1841. This element was broadly used during the nineteenth century for various purposes like giving the glass a greenish-yellow hue which is also known as vaseline glass. In 1896, scientist Henri Becquerel first discovered its radioactive qualities. This discovery was further researched by Enrico Fermi in 1934. This research helped to discover the nuclear fission caused by uranium isotope U-235. What is Uranium? Figure 1: Atomic structure of Uranium Pumbaa (original work by Greg Robson), Electron shell 092 Uranium, CC BY-SA ... Read More

Meitnerium

Bitopi Kaashyap
Updated on 11-Jan-2023 18:24:38

195 Views

Introduction Meitnerium (Mt) mainly has 7 isotopes that are denoted as the half-life. The key isotopes of the elements can be written as $\mathrm{{276}_{Mt}}$. The relative atomic mass of these elements which generates radiation is 277. The element behaves like a solid at 20°C which can be determined as the room temperature. Meitnerium (Mt), is the element that can be found in the d-block of the periodic table and in group 9. A cubic and crystalline structure proves that Meitnerium (Mt) has similarity with iridium. The element has the atomic radius of 128 pm. The density of Meitnerium (Mt) is ... Read More

Berkelium

Praveen Varghese Thomas
Updated on 15-Dec-2022 13:27:50

212 Views

Introduction During the synthesis of Americium 243, Seaborg's group synthesized a few milligrams of the element Berkelium. It is a synthetic element found in the periodic table. In 1967 about one gram of Berkelium has been synthesized by the united states. In 2009 about 22 milligrams has been synthesized at Oak Ridge after 250 days of irradiation. It is the fifth synthesized trans uranium element is Berkelium. And it is the eighth member of the actinides. Berkelium metal is not yet obtained in the elemental form. It is synthesized in its compound form such as $\mathrm{BkO_{2}}$, etc. The symbol used ... Read More

Bromine

Tutorialspoint
Updated on 13-Oct-2022 11:19:47

193 Views

Introduction Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (At) are the five elements that make up the halogen group of the periodic table. In Greek, 'halos' means sea salts, ‘genes’ means born. Except for astatine, which is radioactive and only exists in trace amounts, these elements react with metals to produce salts and are plentiful in nature. Because the elements' valence shells have seven electrons, the typical electronic configuration of Br is $\mathrm{[Ar]\:4s^2 \:4p^4}$. Occurrence and Extraction of Bromine Bromine is the 47th most prevalent element in the earth's crust, with a concentration of 2.5 ppm by ... Read More

Boron

Tutorialspoint
Updated on 22-Aug-2023 10:35:28

219 Views

Introduction The elements of Group 13 (III A) are boron (B), aluminium (Al), gallium (Ga), indium (In), and thallium (Th) (Tl). Due to the existence of three valence electrons, these elements are also known as earth metals and triels. The outer shell electronic configuration of Boron can be written as $\mathrm{1s^2\:2s^2\:2p^1}$. In the following sections we would discuss the occurrence, physical and chemical properties of Boron. Occurrence and Extraction of Boron Boron is a relatively uncommon element that makes up roughly 9 parts per million (ppm) of the earth's crust. Davy initially isolated the element in 1807 by fusing boric ... Read More

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