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Periodic Table
The Periodic Table is a tabular arrangement of the elements in increasing order oftheir atomic numbers, so that elements with similar properties are in the same column. There are 18 columns, called groups, and seven rows, which are called periods, in the modern periodic table. Questions about the Periodic Table: its history and creation, trends, groups/families, and periods are asked in our Periodic Table category.
11,356 Questions
What element is named after long- bearded russian himself?
There are lots of long-bearded Russians, but the one you're probably thinking of is Dmitri Mendeleev. He came up with the whole idea of the Periodic Table of the Elements back in the 1800's, and he is honored today for this achievement by having the element Mendelevium (Md, #101) named for him.
What is the contribution of jp cooke to the periodic table?
J.P. Cooke was a chemist who made significant contributions to the periodic table by proposing an early version of the periodic law in 1864, which stated that the properties of elements are a periodic function of their atomic weights. This concept laid the foundation for the modern periodic table and its organization of elements based on their atomic numbers.
What is the name of the chemical formula CaS?
Ca is the periodic symbol for Calcium. S is the periodic symbol for Sulfur. As such, CaS2 is a compound of calcium and sulfur.
Which the element uranium belong to?
The period that Uranium is found in is Period 7 of the Periodic Table.
There are only 7 periods in the periodic table...
What is the cause of periodicity amongst elements in periodic table?
Periodicity among elements in the periodic table is caused by the repeating patterns of electron configurations as you move across a period or down a group. This is due to the way that electrons fill atomic orbitals, resulting in similar chemical behavior and properties among elements within the same group or period.
What is the ionization energy level for N?
The first ionization energy for nitrogen is 1402 kilojoules/mole
Is oxygen a representative element or a transition element?
Oxygen is not a transition element, it is a representative element. Representative elements are found in the s and p blocks of the periodic table, while transition elements are found in the d and f blocks. Oxygen is found in Group 16 of the periodic table.
Can radium be manufactured artificially?
Radium is a natural chemical element, an alkali earth metal; but some isotopes of radium can be obtained artificially.
Which element is found in your blood?
Iron is an essential element found in small quantities in the blood. It is a critical component of hemoglobin, the protein in red blood cells that carries oxygen from the lungs to the rest of the body.
What is bauxite on the Periodic chart?
Bauxite is not found on the Periodic Table as it is not an element. Bauxite is an ore that is the world's primary source of aluminum. It is a mixture of minerals, mainly gibbsite (aluminum hydroxide), boehmite, and diaspore.
What compounds do aluminum have on the periodic table?
There are NO compounds on the periodic table of elements.
Why does the oxygen symbol O not have a subscript?
Because symbols for the elements do not have subscripts. A subscript is added in the chemical formula of a compound to indicate how many atoms of the element are included in a molecule of the compound. For example, when hydrogen (H) and oxygen (O) combine to form water (H2O), a subscript 2 is added to the H to indicate there are two hydrogen atoms in a molecule of water, but no subscript is added to the O, because there is only one oxygen atom is in a molecule of water.
What group is the element plutonium in?
The element Plutonium has an atomic number of 94, and atomic weight of 244, has a melting point of 913 K (640 C or 1184 F), has a freezing point of 3501 K (3228 C or 5842 F), a density of 19.84 grams per cubic centimeter, it is a solid at room temperature, its elemental classification is a metal, its preiod number is 7, it has no group number, its group name is Actinide, and this is a radioactively produced element produced by Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, and Arthur C. I am happy to give you this information and I hope you find a well use for it.
What does p stand for on table of elements?
The letter "p" in the periodic table stands for "principal." It refers to the principle or principal quantum number that indicates the energy level of an electron in an atom. The principal quantum number is denoted by the letter "n" in the electron configuration notation.
What is sodiums period or address?
Sodium is an alkali metal, placed in period 3, group 1 of the periodic table of Mendeleev; the atomic number is 11.
How was called the coalition of varios reform groups?
A national interfaith coalition of organizations and individuals promoting a faith-inspired vision for a health care future that is inclusive, accessible, affordable and accountable., interfaith coalition working on health care for all ... Developed by the Faithful Reform in Health Care coalition, it was delivered to...
What is the Use of atomic energy?
Atomic energy is used primarily for generating electricity in nuclear power plants. It is a low-carbon energy source that can produce large amounts of electricity with minimal greenhouse gas emissions. Atomic energy also has applications in medical treatments, industrial processes, and scientific research.
What is an element that has the same atomic number but different mass numbers?
Isotopes are elements that have the same number of protons (atomic number) but different numbers of neutrons, resulting in different mass numbers. For example, Carbon-12 and Carbon-14 are isotopes of carbon.
What element is a soft drink can made from on the periodic table?
How about you get the question right in the first place
Explain the difference between atomic fission and atomic fusion?
The main difference between these two processes is that fission is the splitting of an atom into two or more smaller ones while fusion is the fusing of two or more smaller atoms into a larger one.
How many groups are in periods 6 and 7 of the periodic table?
well there is metals meatlloids nonmetals gases solids liquids synthetically prepared element so i guess 7????
What is the largest 5th period metal on the periodic table?
The largest 5th period metal on the periodic table is barium. It has an atomic number of 56 and is found in Group 2. Barium is a silvery-white, soft metal that is highly reactive with water and oxygen.
