0
What else can I help you with?
An average of the masses of all the naturallly occurring isotopes of an element?
The weighted average for all isotopes that occur in nature for an element is its atomic weight listed on the Periodic Table of the elements.
How did Mendeleev arrange the known element in his periodic table?
He arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
What is arranged into a systematic chart by Dimitri Mendeleev?
Dimitri Mendeleev arranged the known chemical elements into a systematic chart known as the Periodic Table. By organizing the elements by atomic number and properties, this table allows for predictions of the behavior and characteristics of elements within each group.
How did mendeleev arrange the known elements in a table?
Mendeleev arranged the known elements in a table based on their atomic mass and chemical properties. He grouped elements with similar properties together in columns, known as groups, and arranged them in rows based on increasing atomic mass. He left gaps for undiscovered elements predicting their properties.
An objects is a measure of the amount of matter in the objects compered t known masses?
an object consists of elements and it's density, mass and atomic structure. coal has the same elements as a diamond but its arrangement of its structure.
How did mendeleev organize the elements to create a periodic table?
Mendeleev organized the elements by increasing atomic mass and grouping elements with similar properties into columns called groups. He left gaps in the table for undiscovered elements and predicted properties of these elements based on the periodic pattern of known elements.
How chemists know the atomic masses of elements in the periodic table?
Chemists determine the atomic masses of elements by analyzing the isotopic composition of the element in nature. They calculate the weighted average of the masses of each isotope present, taking into account their relative abundance. This average atomic mass is the value listed in the periodic table.
Who arranged the periodic table in masses?
Dmitri Mendeleev is credited with arranging the periodic table based on atomic masses. He organized the elements with similar properties into columns known as groups or families, laying the foundation for the modern periodic table we use today.
What is the atomic weight of plutonium?
Plutonium is a not stable, radioactive element. The IUPAC table Atomic weights of the elements, 2009 don't mention an officially atomic weight for plutonium. But you can find tables with atomic masses of the all 20 known plutonium isotopes (Audi, Wapstra, Thibault, 2003).The atomic mass of the most important isotope (239Pu) is 239,052156.
Who contains all known elements and lots of information about the elements?
The Periodic Table contains all the known elements and information about each of the elements, such as atomic number, atomic mass, group, period and symbol.
What is the density of the group one elements?
The group one elements, also known as alkali metals, have low densities ranging from 0.53 g/cm^3 (lithium) to 0.97 g/cm^3 (cesium). This low density is due to their relatively large atomic radii and low atomic masses.
What is mendeleev's periodic law?
The physical and chemical properties of the elements are periodic functions of their atomic numbers.The periodic law states that the physical and chemical properties of elements are periodic functions of their atomic numbers. They influence the characters of an element more than atomic weight.
