* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Chapter 4 Study Guide-Atomic Structure Define the following terms
Einsteinium wikipedia , lookup
Condensed matter physics wikipedia , lookup
Electronegativity wikipedia , lookup
Abundance of the chemical elements wikipedia , lookup
Metastable inner-shell molecular state wikipedia , lookup
Isotopic labeling wikipedia , lookup
Nuclear transmutation wikipedia , lookup
Chemical bond wikipedia , lookup
Molecular orbital diagram wikipedia , lookup
Gas chromatography–mass spectrometry wikipedia , lookup
IUPAC nomenclature of inorganic chemistry 2005 wikipedia , lookup
Elementary particle wikipedia , lookup
Atomic orbital wikipedia , lookup
Nuclear binding energy wikipedia , lookup
History of chemistry wikipedia , lookup
Periodic table wikipedia , lookup
History of molecular theory wikipedia , lookup
Rutherford backscattering spectrometry wikipedia , lookup
Extended periodic table wikipedia , lookup
Chemical element wikipedia , lookup
Electron configuration wikipedia , lookup
Valley of stability wikipedia , lookup
Chemistry: A Volatile History wikipedia , lookup
Chapter 4 Study Guide-Atomic Structure Define the following terms: Atom- smallest particle of an element that retains its identity in a chemical reaction Atomic Mass-weighted avg mass of the atoms in a naturally occurring sample (isotopes) Atomic Mass Unit (amu)-unit of mass of a proton or neutron (1 amu each) Atomic number-number of protons, periodic table Dalton’s Atomic Theory-first theory to relate chemical changes to events at the atomic level Electron-negatively charged subatomic particle, lives outside of the nucleus Group-vertical column on periodic table Isotopes- atoms of the same element with a different number of neutrons Mass number- # of neutrons + # of protons Neutron-Neutrally charged subatomic particle that lives in the nucleus Nucleus-positive core of the atom, contains protons and neutrons Period-horizontal row on periodic table Periodic Table-arrangement of elements in which the elements are separated into groups based on a set of repeating properties Proton-positively charged subatomic particle that lives in the nucleus Plum Pudding Model-electrons stuck in positive lump (JJ Thomson) What are the following people noted for in Chemistry? JJ Thomson (2 things)-plum pudding model and discovered the electron Rutherford (2 things) Gold-Foil Experiment, Rutherford Atomic Model Democritus-philosophy that atoms were indivisible and indestructible Dalton-Dalton’s atomic theory Why is an atom electrically neutral? Protons and Electrons are equal What is the charge of the nucleus of every atom? Positive What is the mass of a proton and a neutron? 1 amu each Draw a picture of Rutherford’s Atomic Model. Neutrons and protons in center (nucleus) with electrons moving around the nucleus. A sample of Zirconium has a mass of 91.22g and 6.02x1023 atoms. How much mass does each atom have? (SHOW YOUR WORK) 91.22g/6.02X1023 =1.5x10-22 g/atom What is the symbol for Lead? What is its atomic number? What is its average atomic mass?(be able to use a periodic table to determine these things for any element and not have the key) Pb, atomic number=82, average atomic mass (atomic mass) 207.2 2 Isotopes of lead are Lead-122 and Lead-124. Write the mass number, atomic number, number of protons, number of neutrons and number of electrons for each isotope? Lead-122 Lead-124 Mass # 122 124 Atomic # 82 82 #of p 82 82 # of n 40 42 #of e 82 82