There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as ...

But in atoms with unpaired electrons in their outer shells, there’s nothing to cancel out the magnetic moments, which means these elements are magnetic. These elements tend to come from two ...

Researchers are opening up new horizons in chemistry: They present the world's first triple bond between the atoms boron and carbon. Boron, carbon, nitrogen and oxygen: these four elements can ...

Atoms can combine in different numbers and in different ways to make different molecules. Atoms and molecules make up all of the different substances, including solids, liquids, and gases that are all ...

Students then see an animation to help explain that the substances are made of different atoms and molecules, so they dissolve differently. Other than tasting the salt and sugar, what test could we do ...

OXIDISING asd REDUCING AGENTS are substances which bring about ... that the “affinity” or force that unites the atoms of different elements is not purely electric in character.

But if we take the substances of which the heart and brain are composed and resolve them into their elements, and feed them to other animals, we find they are not all assimilated. The phosphorus ...

Researchers in my field work to understand the chemistry of all the elements that make up the periodic ... ion's structure is affected by the other atoms surrounding it. Rubies are mainly made ...

They are formed of simple molecules or individual elements arranged in repeating ... Diamonds, made of carbon atoms, are the hardest natural substance found on Earth. Formed under extremely ...

We also, confusingly, tend to refer to pure substances made of one kind of atom, like chlorine gas, as elements. But these are very different from the isolated atoms depicted on the periodic table.