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the mass number is the number on the bottom left corner of each atom
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Meyer contributions to the periodic table are?
Mendeleev developed the periodic table of elements by arranging the elements in order of increasing atomic mass in 1869. He discovered that elements with similar properties occurred in a periodic pattern. He was able to predict the properties of elements that were missing at the time because of this pattern. In 1914, Moseley contributed to the periodic table by reorganizing the elements according to atomic number.
When did Meyer contribute the periodic table?
Meyer developed a table that was similar to modern periodic table. But his work was published later after Mendeleev.
What does a periodic table have on it?
the periodic table is connected to the elements on it. all the elements have a mass and an atomic structure. when trying to work out the relative atomic mass and relative formula mass and also the other common equations in chemistry, the periodic table will help you. (",).
What was Meyers contribute to the periodic table?
Meyer developed a table of elements which closely resembles modern periodic table. However his work was published after Mendeleev.
Which element has the greatest atomic mass Li Cl C?
Among these three elements, Cl has the greatest mass, as can be seen from any periodic table or other reference work that shows atomic masses.
How many moles grams are in 24.6 moles of Fe?
Find iron (Fe) on the periodic table the biggest number (at the bottom) is the mass number 1 mole is that number in grams. you can work it out from there.
How do you you work out the number of neutrons in an atom?
Atomic Mass minus atomic number
Does the number of electrons equal the number of protons?
The number of neutrons in an atom can vary....ie an elements can exist with atoms that have the same number of electrons (and so are chemically the same) but have a different number of neutrons. These are called isotopes.
What is the important work of dmitr mendeleev?
he invented an early version of the periodic table, and was able to use it to predict what unfound elements properties would be he follow the periodic law and place the similar elements according their mass number.
Meyer contributions to the periodic table are?
Mendeleev developed the periodic table of elements by arranging the elements in order of increasing atomic mass in 1869. He discovered that elements with similar properties occurred in a periodic pattern. He was able to predict the properties of elements that were missing at the time because of this pattern. In 1914, Moseley contributed to the periodic table by reorganizing the elements according to atomic number.
What is the mass of one atom of calcium?
You can work this out by dividing the molecular mass of calcium, 40, by Avogadros number, 6.02214129(27)×1023 mol−1 This will give you the answer as the molecular mass of an element is the combined weight of the number of atoms that make up one mole, which is the same as Avogadros number.
What is period lease?
the Periodic Table is something lame you use to work with science.
When did Meyer contribute the periodic table?
Meyer developed a table that was similar to modern periodic table. But his work was published later after Mendeleev.
What does a periodic table have on it?
the periodic table is connected to the elements on it. all the elements have a mass and an atomic structure. when trying to work out the relative atomic mass and relative formula mass and also the other common equations in chemistry, the periodic table will help you. (",).
What was Meyers contribute to the periodic table?
Meyer developed a table of elements which closely resembles modern periodic table. However his work was published after Mendeleev.
How do you work out the number of valence electrons in a substance?
Just get to know the periodic table of the elements; that is the key to understanding valence electrons.
How can you work out the number of neutons in hydrogen?
Subtract the mass from the number. Hydrogen's mass is just about 1, and it's obviously number 1 on the Table. Therefore, its nucleus has no neutrons.
