Some elements have information about their isotopes.

chemical elements

Chemical symbols are used to identify chemical elements.

Export Chemical Data

Tools Convert chemical files...

Don't swallow these chemical products.

Convert chemical files...

Of how many chemical elements is water composed?

We are huge packages of chemicals.

You use chemicals. You put them into water where they breed.

Birnbaum says this apparent interaction between chemicals and nonchemical stressors is very concerning and very important.

We talk about things in relative terms.

It is cheaper than chemical fertilizers.

I don't believe that chemicals are unnatural.

They could be creative in terms of education, they may be creative in terms of culture, they may be creative in terms of institutions but a lot of our work is in the field of technological creativity, the innovations, either in terms of contemporary innovations, or in terms of traditional knowledge.

We think in abstract terms, we think in movement.

Chemists are trying to study the molecules to look at disease.

In the core, we have thermonuclear reactions going on, creating chemical elements.

Zare is the author of various academic papers involving the research of the spectroscopy of chemical compounds.

Terms

And we've decided that we should think about this not so much in terms of cost, but in terms of simplicity.

We loosely call them groups.

The chemical ingredients cause the mouth to dry up.

And as a chemist, we're not used to profound questions every day.

This is the calculator, it performs basic chemical calculations.

Do organic potatoes actually have fewer toxic chemicals used to produce them than conventional potatoes?

She thinks of everything in terms of money.

In economic terms , there will remain only one currency which can be expressed in different ways either in terms of the European monetary unit or in terms of any of the national monetary units .

Chemical vapors can make you really sick.

The Glossary gives you definitions of the most used tools in chemistry as well as some knowledge data. On the left side of the windows you can see the tree of items. On top, there are chemical terms, below that there is a second tree of laboratory tools.

It can't be measured in terms of money.

You don't need to say it in such derogatory terms.

He wrote a letter like this

And he wrote a letter after this manner

Biologists, chemists, engineers, and other experts have also been emigrating in search of better opportunities.

Our first product was a textile where we analyzed 8,000 chemicals in the textile industry.

We therefore also have most at stake in this Round, not just in terms of quantity, but also in terms of quality.

As well as the terms used on the labels, this should include terms used on presentation and packaging.

The higher price level of plastic and chemical materials are responsible for a significant monthly growth in the prices of the production of chemical materials and products (1.6 percent).

With regard to the difference between chemical and natural plant protection products, I would like to emphasize that Annexes 2 and 3 provide for appropriatedata requirements for chemical products on the onehand and organisms on the other, but it seems technically unnecessary to complicate the directive byintroducing again and again the distinction in the body of the directive as suggested in Amendments Nos 105 to 109, 117 and 120.

We tried many different chemicals and agents, and we failed over and over again.

Chemical rockets provide too much thrust, too much push. The probe would just shoot away.

And the key thing is to have lots of complex chemistry just bubbling away.

This table shows all of the known isotopes of the chemical elements.

At the same time we have been instructed to formulate precisely under what conditions this relief may be granted.