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Early chemists determined which substances were elements through a combination of observation, experimentation, and logic. They looked for substances that could not be broken down into simpler substances, that were found in a pure form in nature, and that displayed unique chemical properties. For example, Antoine Lavoisier's work in the late 18th century helped establish the modern definition of an element as a substance that cannot be broken down further by chemical means.
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How did chemists change Mendeleev's periodic table in early 1900s?
They used atomic number instead of Atomic Mass to organize the elements.
Why chemists need to pure mixtures?
to get the original elements of it
What type of scientists made the periodic table?
The periodic table was created by chemists, specifically Dmitri Mendeleev in 1869. Mendeleev organized the elements based on their properties and atomic weights to create a system that displayed the periodic trends of elements.
Who study elements atoms and molecules?
Basically, chemists, biochemists and molecular biologists.
What chemists may say that reactants products?
Chemists may refer to the starting substances in a chemical reaction as "reactants" and the final substances formed as a result of the reaction as "products." This distinction helps in understanding the stoichiometry and energy changes involved in the reaction.
What were the predecessors of today's chemists?
The predecessors of today's chemists were alchemists, who originated in ancient civilizations and focused on transforming substances into gold or discovering the philosopher's stone. This early form of chemistry laid the groundwork for the scientific principles and methods used by modern chemists.
How did chemists change Mendeleev's periodic table in early 1900s?
They used atomic number instead of Atomic Mass to organize the elements.
What do chemists study (apex)?
Chemists study the composition, properties, and interactions of matter. They investigate how different substances react with each other, the structure of molecules, and the characteristics of various elements. Chemists use this knowledge to develop new materials, understand chemical processes, and improve existing products.
Why is the periodic table so valuablee for chemists?
Periodic table group elements with similar properties together. It makes study of elements easier for chemists.
Scientists who study the science of substances are called Geologists true or false?
False. Scientists who study the science of substances are called chemists. Geologists study the science of the Earth's structure, composition, and processes.
How do chemists write water using elements?
H2o
Why chemists need to pure mixtures?
to get the original elements of it
A table of elements that organizes the elements by atomic number and properties?
Chemists call this the periodic table of elements.
Do scientists have to know all the chemical elements in the periodic table?
No. Firstly not all scientists are chemists. Secondly, not all chemists are working on problems that involve many of the elements. In fact only a small minority of working chemists could name the 15 lanthanide or rare earth elements. Thirdly, all chemists work with computer terminals or reference books nearby where they can easily look up rare or unfamiliar elements.
Why chemists might sometimes store reactive chemicals in argon to which family does argon belong?
Chemists store reactive chemicals in argon because it is an inert gas that does not react with most substances, reducing the risk of a chemical reaction occurring. Argon belongs to the noble gas family.
What type of scientists made the periodic table?
The periodic table was created by chemists, specifically Dmitri Mendeleev in 1869. Mendeleev organized the elements based on their properties and atomic weights to create a system that displayed the periodic trends of elements.
What kind of scientists studies elements atoms and molecules?
Chemists.
