Periodic Table

The elements listed after plutonium on the periodic table are americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, lawrencium. These elements belong to the actinide series and are synthetic, meaning they are not found in nature but are produced in laboratories through nuclear reactions.

Astatine, a radioactive element found in the halogen group, has at least 20 known isotopes. However, only one of these isotopes, Astatine-210, is considered stable. The other isotopes are unstable and undergo radioactive decay.

An element in the s block of the periodic table includes metals like sodium and potassium, while an element in the p block includes nonmetals like oxygen and nitrogen. These elements are characterized based on their outer electron configuration, which determines their chemical properties and reactivity.

MD stands for a Mendelevium, which is a synthetic element with the atomic number 101 on the periodic table. It belongs to the actinide series and is named after Dmitri Mendeleev, the scientist who first proposed the periodic table.

Elements in the periodic table are arranged based on their atomic number, which represents the number of protons in the nucleus of an atom. This arrangement helps to group elements with similar properties together in periods and groups.

There are generally three types of learning gaps: content knowledge gaps (lack of understanding of subject matter), skill gaps (lack of proficiency in performing specific tasks), and cognitive skill gaps (lack of critical thinking or problem-solving skills). Identifying and addressing these gaps is important for effective learning and academic success.

it is the chemical formula for a "truth serum" which makes a person talkative and tell the truth

The element Nickel (Ni) on the periodic table represents 5 cents from America, as the coin "nickel" is made from a combination of copper and nickel metal.

When sodium ions are sprayed over a flame, they impart a yellow-orange color to the flame due to excitation of the sodium atoms. This phenomenon is used in flame testing to identify the presence of sodium in a sample.

There is no element named quadium. There is ununquadium (Element 114), which is its underneath lead and to the right of ununtrium. There was an element named Unnilquadium, but it is now Rutherfordium (Rf). Due to how that type of element name works, Quadium would simply be Element #4--which was discovered in 1798 and was named Beryllium thirty years later.

Dmitri Mendeleev arranged the known chemical elements into a systematic chart known as the periodic table. His arrangement was based on the elements' atomic mass and chemical properties, leading to the organization of elements in periods and groups. Mendeleev's periodic table laid the foundation for the modern understanding of the relationship between elements.

The halogens, periodic table column 17, are the most reactive nonmetals, because they have the highest electronegativities and therefore can strongly attract electrons from almost any other elements.

Sodium is the eleventh element on the periodic table.

The alkali metals (Group 1) and the alkaline earth metals (Group 2) are most similar in chemical properties due to both groups having similar metallic properties, reactivity, and ability to form cations with a +1 or +2 charge.

There are 13 elements named after people, although only 12 of the names are formally accepted by the International Union of Pure and Applied Chemistry (IUPAC). * bohrium (Bh, 107) - Niels Bohr * curium (Cm, 96) - Pierre and Marie Curie * einsteinium (Es, 99) - Albert Einstein * fermium (Fm, 100) - Enrico Fermi * gallium (Ga, 31) - both named after Gallia (Latin for France) and its discoverer, Lecoq de Boisbaudran (le coq, the French word for 'rooster' translates to gallus in Latin) * hahnium (105) - Otto Hahn (Dubnium, named for Dubna in Russia, is the IUPAC-accepted name for element 105) * lawrencium (Lr, 103) - Ernest Lawrence * meitnerium (Mt, 109) - Lise Meitner * mendelevium (Md, 101) - Dmitri Mendeleev * nobelium (No, 102) - Alfred Nobel * roentgenium (Rg, 111) - Wilhelm Roentgen (formerly Ununumium) * rutherfordium (Rf, 104) - Ernest Rutherford * seaborgium (Sg, 106) - Glenn T. Seaborg

Transition metals tend to be less reactive than alkali metals or alkaline earth metals. They often form colorful compounds, have multiple oxidation states, and can act as catalysts in chemical reactions. However, some transition metals can still react with certain elements or compounds under the right conditions.

No, alcohol does not dissolve salt better than water. Water is a better solvent for salt because of its polar nature, which allows it to break apart the ionic bonds in salt and dissolve it more effectively. Alcohol is less polar and not as effective at dissolving ionic compounds like salt.

Elements 110, 111, and 112 have been named. Element 110 is now called darmstadtium with the symbol Ds. Element 111 is now called roentgenium with the symbol Rg. Element 112 is now called copernicium with the symbol Cn.

Tungsten's chemical symbol is W because it comes from its older, German name "Wolfram." In the early 19th century, tungsten was often referred to as wolfram in Europe, and the symbol W was chosen to represent this element on the periodic table.

The elements were arranged according to atomic number. And atomic number is equal to the number of protons and electrons.

There is a rule (octet rule), which states that for an atom to be stable, it needs 8 electrons.

The First Group has one excess electron to be stable. Group 7 needs one electron to be stable.

(in short... 1-1=0(stable), 7+1=8(stable))

Group 8 has 8. So it is stable, and located at the end of the table.

"Wrestled with the table" typically means struggling or having difficulty with a physical object or piece of furniture, such as trying to move it, assemble it, or fix it. It may suggest a challenging or frustrating task that requires physical effort or problem-solving skills.

Lawrencium is a synthetically prepared element, a metal, has an atomic mas of 103, and is one of the Actinides.

Yes, generally the electronegativity of elements increases as you move from left to right across a period on the periodic table. This trend is due to the increased nuclear charge and decreased atomic size as you move across the period, which results in stronger attraction for electrons.

Lanthanides and actinides are placed at the bottom of the periodic table to avoid significantly expanding the table and making it less practical. Placing these two series below the main body of the table helps keep the table compact and easier to use. Additionally, these elements have similar electron configurations, which is why they are grouped together in this way.

Yes, table runners are typically shorter than the table they are placed on. They are meant to run along the center of the table, leaving some space on either end for a balanced look. A general guideline is for the table runner to be about two-thirds the length of the table.