Atom

August 30, 1871, in Spring Grove, New Zealand. He was a pioneer of nuclear physics and the first to split an atom. He was awarded a Nobel Prize in chemistry for his theory of the atomic structure. He discovered alpha and beta rays, that the atom could be split, and contributed to the Atomic Theory. He used the gold foil to see how to alpha and beta rays would bounce off off different atoms. Ernest was responsible for a remarkable series of discoveries in the fields of radioactivity and nuclear…

Salts and molecules have similar characteristics, and many differences whether we can tell by first looks or not. Testing these two only supports the differences, and many structural functions cause these differences. Since salts are ionically bonded, they have different properties and functions compared to the covalent bonded molecules. Salts have a ionic bond, and we can confirm due to their electronegativity. As you move from left to right on the periodic table you would notice that…

Freshwater creek is a freshwater stream located in North Cairns, and flows through the Redlynch area-which consists of rainforest, housing, farming and recreational areas. In order to have an indication of general health levels for Freshwater creek, measurements of the water parameters must be regularly checked. This is done to maintain health and prevent abnormal water qualities. Certain water qualities like dissolved nitrates, ammonia and oxygen will be measured at a site upstream from…

Story”, it explains electricity to the audience by showing how it affects us, and how we depend on it in everyday life. The passage proceeds to explain atoms and what their relationship to electricity is. It continues to talk about electrons and atoms, and describes how within the atoms are electrons, and when the electrons move between the atoms, a current of electricity is created. A description of an experiment the passage used was describing how the chain was similar to the fire fighter’s…

This report will compare the water quality of Freshwater Creek over the last three years using chemistry to show how the three chosen parameters are all linked and affect the overall quality of the water. Water is combination of two atoms, oxygen and hydrogen. When two hydrogen’s bond with one oxygen it makes a covalent bond. A covalent bond relates to the outer shell of electrons (valence shell) being shared with the neighbouring molecule for them to bond. A covalent bond only occurs between…

obtained will be different. Primary alcohols have one carbon and two hydrogen atoms attached will produce aldehyde and then to carboxylic acid in two steps by oxidation. While secondary alcohols have two carbon atoms and one hydrogen atom attached will produce ketone by oxidation (Kotz, et al., 2015) Aldehydes, the compounds that the carbonyl group has a hydrogen atom attached to it together with either a second hydrogen atom or a hydrocarbon group. Ketones are the compounds that two…

instability of an atom either having too many or too few of and type of particles within an atom 's.These type of particles can be either having too many or too few electrons, neutrons or protons and you have a radioactive element.The element becomes unstable as each part holds another part on so having too few means that the link may be too weak to hold it together then having too many means there pushing others off the particles as there are too many attached to the main atom for them to share…

is not intentional that that occurs. 2. Summarize the life and work of Henry Moseley. (3 marks) Throughout his life, Henry Moseley was buried in his studies, spending most of his time in the laboratory. With Darwin’s grandson, he researched how atoms behaved when they were struck by a beam…

Chemistry is the study of atoms. Chemical scientists study what atoms are made of and how they connect. Atoms are the building blocks of matter. Atoms are made up of protons, neutrons and electrons. It was John Dalton who put forward his ideas and theories about atoms at the beginning of the 19th century: Dalton proposed that atoms were like tiny, hard balls (Absorb Learning, 2008). Then at the end of the 19th century JJ Thompson discovered the electron through an experiment. When JJ Thompson…

– equation (2 gives info on location of electron in terms of probability density - wave functions are called orbitals – [pic], where E is energy, e2 is electric potential, r is orbital radius and h is Planck’s constant 1925 Wolfgang Pauli – each orbital has only 2 electrons is now explained due to direction of spin of electrons. Spinning electrons create magnetic field. Only 2 electrons of opposite spin in an orbital referred to as Pauli exclusion principle Hund’s rule – half fill…