The periodic table is a classification system for atomic elements invented in 1869 by the Russian...
Image: Natural SciencesThe periodic table of elements order all chemical elements known so far. A...
Image: Google SitesThe millikan experiment or oil drop experiment was carried out by physicist Ro...
Electrons are subatomic particles that revolve around the atomic nucleus in an electron cloud cal...
To study the chemical nature of matter, science relies on the establishment of many constants. Co...
Isotopes are atoms of the same element that have the same number of protons in the nucleus but ha...
Image: SlideshareThe term atom comes from the Greek ἄτομον ("Atom") and refers to the smallest co...
Image: ptable.comIn 1869, the Russian chemist Dimitri Ivanovich Mendeleev devised a way to classi...
Matter is made up of atoms of different chemical elements. Chemical elements have different prope...
Image: Preparaniños.comThe atoms are, according to classical chemistry, the structural unit of ma...
Image: SlidePlayerAtoms are part of our world. All matter is made of atoms, so it is important to...
Image: SlideShareAlthough we are not able to see them with the naked eye, atoms are part of all m...