CHEM 1001 Chapter : Chemistry
Document Summary
~ even the romans were involved in nanotechnology. ~ a simple model of an atom takes into account the dominant truisms. ~ protons have a mass of one atomic unit (amu) ~ the charge on a proton is one positive charge unit (+1c. u. ) ~the charge on an electron is one negative charge unit (-1c. u. ) ~ in the bohr model, electrons travel in orbits around the nucleus. ~very small volume compared to volume of the atom. ~atoms of same element can have diff numbers of neutrons. Carbon likes to decay and therefore we can measure how old an object is by measuring the amount of carbon in the object. (radioactive) Chemistry often referred as the "central science" bridges bt physics and biology. ~the study of matter and the transformations it undergoes. Chemistry begins to define matter by two broad types: pure substance. So we gonna have to learn the elements, awesome. The neutron has the same mass as a proton.
