Group Exercise on atoms and atomic weight

Group Exercise on atoms and atomic weight - Studio...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Studio Chemistry Fall 2007 Studio Group Exercise Today we will be investigating the following 2 questions: 1) What is an atom? 2) Are all of an element’s atoms identical? In response to a question, scientists will conduct background research aka fact gathering, by consulting published data. They may find that their question has already been answered or that they can propose a better hypothesis or method for future data gathering. You can see from the scientific inquiry model in Figure 1 that science process is not linear. Today you will practice fact gathering and the effects of this process on developing questions and hypotheses as you explore the models and data that exist in an effort to answer the two questions, “What is an atom?” and “Are all of an element’s atoms identical?” Figure 1: Model for scientific inquiry Question Hypothesis Data/Fact Gathering Evaluation .
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Studio Chemistry Fall 2007 1) Question : What is an atom? Model 1: Schematic Diagrams for Various Atoms The nucleus of an atom contains the protons and the neutrons. 1.00728 amu 1 H electron (-) neutron (no charge) proton (+) 1 amu = 1.66054 x10 -24 g Hydrogen Hydrogen 2.0165 amu 2 H 1 H and 2 H are isotopes of hydrogen. 12.0989 amu Carbon Carbon anion Carbon 12 C and 13 C are isotopes of carbon. 12 C 6 protons 6 neutrons 13.1076 amu 13 C 6 protons 7 neutrons 13.1081 amu 13 C - 6 protons 7 neutrons 16.1330 amu 16 O -2 23.1895 amu 23 Na + Oxygen dianion Sodium cation 8 protons 8 neutrons 11 protons 12 neutrons
Background image of page 2
Studio Chemistry Fall 2007 Evaluation 1) How many protons are found in 12 C? 13 C? 13 C - ? 2) How many neutrons are found in 12 C? 13
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/12/2012 for the course CHEM 103 taught by Professor Jeffashley during the Fall '10 term at Philadelphia.

Page1 / 8

Group Exercise on atoms and atomic weight - Studio...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online