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Are some elements that have been made by scientists under laboratory?
Yes, scientists have created synthetic elements in laboratories through nuclear reactions. Examples include elements beyond uranium (element 92) on the periodic table, such as neptunium, plutonium, and others. These synthetic elements are typically unstable and have short half-lives.
Substance that cannot be changed into a simpler substance under normal laboratory conditions?
Substance that cannot be changed into a simpler substance under normal laboratory conditions are elements. A physical blend of two or more substances that are not chemically combined is a mixture.
Three elements that do not react with any others are?
Helium, Neon, and Argon are the most non-reactive elements known. Though it is possible to make them react with other elements, it is extremely difficult and can only be achieved under precise laboratory conditions.
What do scientists use to represent how elements react in the presence of other elements?
Scientists use chemical reactions and equations to represent how elements interact in the presence of other elements. These reactions show the starting materials (reactants) and the resulting products, along with the specific ratios and conditions under which the reaction occurs. By studying these reactions, scientists can understand the behaviors and properties of different elements and compounds.
What evidence do scientists have that the inert gases are not completeky inert?
Scientists have observed that certain conditions can cause inert gases like xenon, krypton, and argon to form compounds with other elements. Additionally, experiments have shown that inert gases can react with elements under extreme conditions, such as high pressure and temperature. These observations challenge the traditional view that inert gases are completely unreactive.
Simplest form of matter that can exist under normal laboratory conditions?
tell whether each fraction is in simplest form. if not, write it in simplest form, tell whether each fraction is in simplest form. if not, write it in simplest form,
Some elements have been made by scientists under laboratory conditions?
There are many. Number 43 (technetium) and numbers 84-118 are also made in laboratories. However, numbers 90, 91 and 92 are found in nature but they're also made in laboratories. They are made by throwing different atoms in each other. For example, ununoctium was made by throwing californium atoms in calcium atoms.
A statement that describes what scientist expect to happen every time under a particular set of conditions?
A statement that describes what scientists expect to happen every time under a particular set of conditions is a scientific law. A scientific law always applies under the same conditions, no matter what the elements are.
Is calcuim solid liquid or gas?
Under standard laboratory conditions, calcium is a solid.
Could lithium react with helium?
In normal conditions, lithium and helium do not react with each other because they are both inert elements. However, under extreme conditions such as in a laboratory setting with high temperatures and pressures, it is possible for lithium to react with helium.
Which nonmetal is a liquid under ordinary laboratory conditions?
Non-metal? Water would be one.
Do all scientists work in laboratories?
No, because some scientists work outdoors....but on the other hand they might. This is because some scientists have to take indoors what they find and examine it under laboratory type tools.
