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The average of two atomic weights for a group of three elements equaled the atomic weight of the third.
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Why can a theory never become a law?
they are only secientific observations
A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a?
A brief statement summarizing many observations of a physical phenomenon is called scientific law. The density of an object is the ratio of its mass to volume.
What backs up a scientific law?
Scientific laws are backed up by the observations and experimentation and mathematical analysis of scientists.
A rule of nature that sums up related observations and experimental results is?
Scientific Law. If your doing this for a paper for school, I feel you.
How are scientific law and scientific theory are the same?
Scientific laws and scientific theories are both based on observations and experimental results.
What did dobereiners law of triads state?
New land law
How was Döbereiner's concept of triads an important step in the developement of the periodic table?
Döbereiner (working after 1815) was the first which found some rules for the rational arrangement of chemical elements. He proposed in 1829 the law of triads - only five triads were discovered.
What resulted from the first experimental effort that established the idea of groups of elements?
The Law of triads
What Resulted from the first experimental effort that established the idea of group of elements?
The Law of triads
What did Johann dobreiner do for the periodic table?
Dobereiner classified elements into groups of three. He introduced law of triads according to this law every element which comes in the middle of such a group has atomic mass equal to average of the atomic masses of first and third element. for example Lithium(Li) 7 Sodium(Na) 21 Potassium(K) 39
Summary of many experimental results and observations?
Law . (: law!!;)
Who preceded Mendeleev and Meyer with work on the periodic table?
Newlands and Dobereiner. Newlands did the Law of Octaves. Dobereiner did the Triads.
What was the exact date of johann dobereiner's discovery?
Johann Wolfgang Döbereiner discovered the concept of the law of triads in 1817.
What are dobereiner's triads defect?
the main defect of' dobereiner's triads is that he put the chemically dissimilar elements in the same triads (dahal.ramchandra@gmail.com)
A scientific law an explanation of things or events based on observations of an explariment?
Is a scientific law an explaination of thing or events based on observations of an explariment
Who arranged the elements into triads?
The scientist who arranged the elements into triads was Dobereiner.
What is the value of scientific law?
the value of scientific law is the set of observations...
