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What does daltons fourth postulate state?
Dalton's fourth postulate states that atoms of different elements have different weights. This idea laid the foundation for the concept of atomic mass and helped to distinguish between different elements based on their atomic weights.
Can you find any cases in the first 90 elements in which consecutive elements do not have increasing atomic weights?
Yes, in the first 90 elements of the periodic table, there are cases where consecutive elements do not have increasing atomic weights. For example, between lithium (Li) with an atomic weight of 6.94 and beryllium (Be) with an atomic weight of 9.01, the atomic weight decreases instead of increasing.
True or false a Russian chemist Dmitri mendeleyev constructed the periodic table by which he calculated the atomic weights of the different elements?
True--PainRain
What tells you how heavy an elements atoms are compared with atoms of other elements?
the atomic weights on the periodic table
Did John Dalton stat that different atoms have different weights?
its not true The answer to the Question in (no)
Who constructed the periodic table by which he calculated the atomic weights of the different elements?
Dmitri Mendeleyev
What does daltons fourth postulate state?
Dalton's fourth postulate states that atoms of different elements have different weights. This idea laid the foundation for the concept of atomic mass and helped to distinguish between different elements based on their atomic weights.
Who was the first scientist to determine atomic weights for elements?
The first scientist to determine atomic weights for elements was John Dalton, an English chemist and physicist.
Do all elements have the same atomic weight?
No they are all different and even some atoms of the same element have different weights
What is radioactivity number?
There is no such thing. There are elements with isotopes that have different atomic weights and these decay [radioactively] into daughter elements which will also have a range of atomic weights. There is also the half-life, which is a measure of the time before half the atoms in a lump of a substance have decayed.
Did daltons atomic theory include the idea that all atoms of all elements are the same size?
No, Dalton's atomic theory did not include the idea that all atoms of all elements are the same size. Instead, he proposed that atoms of different elements have different sizes and weights.
What is the mass of 4000 molecules of nitrogen?
Nitrogen is an element(atom), not a molecule. atomic weights are not a constant of nature and depend on the physical and chemical history of the elements. isotopes have different weights.
How the elements of isotopes are alike and how they are different?
Elements can exist in the form of different isotopes. Isotopes of the same element have the same number of protons in their nuclei but have different numbers of neutrons. The first gives them the same atomic number and chemical properties while the second gives them different atomic weights.
Can you find any cases in the first 90 elements in which consecutive elements do not have increasing atomic weights?
Yes, in the first 90 elements of the periodic table, there are cases where consecutive elements do not have increasing atomic weights. For example, between lithium (Li) with an atomic weight of 6.94 and beryllium (Be) with an atomic weight of 9.01, the atomic weight decreases instead of increasing.
What is the sum of atomic mass?
I suppose that you think to atomic weights (not mass) of chemical elements and the molecular mass.
Base weight a system of comparing atomic weights to carbon is it true or false?
True. The unit for the atomic weights of chemical elements is the relative atomic mass unit (1/12 from the atomic mass of the isotope 12C). Note that atomic weights is used for elements and atomic mass for isotopes.
True or false a Russian chemist Dmitri mendeleyev constructed the periodic table by which he calculated the atomic weights of the different elements?
True--PainRain
