Periodic Table

The scientist who recognized the periodic table for atomic number was Henry Moseley. He discovered that elements should be ordered by atomic number rather than atomic mass, which led to the modern understanding of the periodic table.

No, californium is not classified as a lanthanide. It is a transuranium element, belonging to the actinide series in the periodic table. Californium is a synthetic element that does not occur naturally and is primarily used in nuclear research.

A zigzag wooden ruler is typically used for creating decorative or unique patterns when drawing straight lines. It can also be used for measuring or drafting various shapes or designs that require a non-linear edge.

The chemical name of CO using the stock system is carbon(II) oxide.

The number 94 corresponds to the natural occurrence of uranium (U) on Earth, which has an atomic number of 92. There are trace amounts of other elements with higher atomic numbers (transuranic elements), but they are either not naturally occurring or highly unstable.

Curium belongs to the actinide series of elements in the periodic table. It is named after Marie and Pierre Curie, who discovered radium and polonium. The element curium itself does not have any family members, as it is a synthetic element with no naturally occurring isotopes.

Alkali metals from group 1 are very reactive and can easily react with air or moisture to form compounds. Halogens from group 7 are also highly reactive and tend to form compounds with other elements to satisfy their valence electron configuration. Therefore, it is more common to find them as compounds rather than in their free elemental form.

Elements from group 1 (alkali metals) and group 7 (halogens) are highly reactive due to their electronic configurations. As a result, they tend to form compounds easily to achieve more stable electron configurations. Compounds with these elements often exhibit useful properties in various chemical reactions and industrial applications.

Yes, the element "silver" has a symbol derived from its Latin name "argentum." The symbol for silver on the periodic table is Ag.

the formula for water is simply H2O (two hydrogens, one oxygen). The formula for cesium is Cs, it is a simple element.

If you mean the reaction equation it is

2Cs + 2H2O --> 2CsOH + H2

The products are cesium hydroxide and hydrogen gas.

The element with the Latin name "lithos" is lithium, with the chemical symbol Li and atomic number 3. It is a soft, silver-white metal commonly used in rechargeable batteries due to its high energy density.

Yes, the heaviest atoms, which have the most protons and electrons, are found towards the bottom of the periodic table in the actinide and transactinide series. These elements have high atomic numbers and are generally unstable and radioactive.

Halogens are found in Group 17 of the periodic table, also known as Group 7A, which is the second-to-last column on the right side. The halogens include fluorine, chlorine, bromine, iodine, and astatine. They are highly reactive nonmetals with seven electrons in their outermost energy level.

Luster is a property used to describe the way light interacts with the surface of a material. It is not an element or substance that can be found in the periodic table itself.

Pt is the symbol representing the element platinumon the periodic table.

Samarium can be found in minerals such as monazite and bastnasite. It is primarily mined in countries like China, Russia, Australia, and the United States. Additionally, samarium is found in some uranium ores.

I know that there are over a hundred but you can't always say because when more elements are discovered they are put on the periodic table on the standard table there are 118,

Dmitri Mendeleev was able to demonstrate the value of his contribution to chemistry by accurately predicting the properties of undiscovered elements and leaving gaps in his periodic table for them, which were later filled by their discovery. This validated the organization of elements by atomic number and helped establish the periodic law.

Calcium has 20 electrons

The last group on the periodic table with 8 valence electrons is the noble gases group. This group includes elements such as helium, neon, argon, krypton, xenon, and radon. Noble gases have a full outer electron shell, making them stable and unreactive.

Yes, iodine is a halogen element and therefore classified as a halide.

As you go down a group in the periodic table, metallic characteristics increase. This is because atomic size increases, leading to a decrease in ionization energy and electronegativity. These trends make elements more likely to lose electrons and exhibit metallic properties such as malleability, ductility, and good electrical conductivity.

Elements in the same group have similar chemical properties. For example, potassium (K) and rubidium (Rb) are in the same group (Group 1) on the periodic table.

If it is solid, one should put the two elements on either side of a balance. The element that dips down is heavier: the other lighter. If they are gasses... I have no idea. Consult other places in the internet.

Yes, the BCNO family (boron-carbon-nitrogen-oxygen) is known to be highly reactive, especially in organic chemistry reactions like hydroboration-oxidation. These compounds can participate in a wide range of chemical reactions due to the diverse elements present in their structure.