Chapter 4:ааAtomic Structure Section 4.1анаDefining the Atom
... Dalton’s Atomic Theory ● John Dalton: English chemist and school teacher (17661844) ● by using experimental methods, Dalton transformed Democritus’s ideas on atoms into a scientific theory ○ studied the ratios in which elements combine in chemical reactions ● Dalton’s Atomic Theory ○ all ele ...
... Dalton’s Atomic Theory ● John Dalton: English chemist and school teacher (17661844) ● by using experimental methods, Dalton transformed Democritus’s ideas on atoms into a scientific theory ○ studied the ratios in which elements combine in chemical reactions ● Dalton’s Atomic Theory ○ all ele ...
Academic Chemistry Midterm Study Guide Chapters 1
... proton- positively charged subatomic particle neutron- subatomic particle with no charge electron- negatively charged subatomic particle atomic number- equal to the number of protons within an atom mass number- equal to the number of protons and neutrons found within the nucleus of an atom isotope- ...
... proton- positively charged subatomic particle neutron- subatomic particle with no charge electron- negatively charged subatomic particle atomic number- equal to the number of protons within an atom mass number- equal to the number of protons and neutrons found within the nucleus of an atom isotope- ...
Ions + Isotopes
... protons and 10 electrons? • What is the chemical symbol for the ion with 7 protons and 10 electrons? • How many protons and electrons are present in the S2- ion? • How many protons and electrons in Li+ ion? ...
... protons and 10 electrons? • What is the chemical symbol for the ion with 7 protons and 10 electrons? • How many protons and electrons are present in the S2- ion? • How many protons and electrons in Li+ ion? ...
Document
... 1. Why are group numbers so important? __________________________________________ _______________________________________________________________________ 2. Why is hydrogen in Group 1 if it is a nonmetal?_____________________________________ __________________________________________________________ ...
... 1. Why are group numbers so important? __________________________________________ _______________________________________________________________________ 2. Why is hydrogen in Group 1 if it is a nonmetal?_____________________________________ __________________________________________________________ ...
cp chemistry midterm exam review topics and problems
... b. atoms of different elements have different properties. c. matter is composed of atoms. d. atoms can be destroyed in chemical reactions. ____ 16. In oxides of nitrogen, such as N2O, NO, NO2, and N2O3, atoms combine in small whole-number ratios. This evidence supports the law of a. conservation of ...
... b. atoms of different elements have different properties. c. matter is composed of atoms. d. atoms can be destroyed in chemical reactions. ____ 16. In oxides of nitrogen, such as N2O, NO, NO2, and N2O3, atoms combine in small whole-number ratios. This evidence supports the law of a. conservation of ...
Chapter 3
... reaction equals the mass of the products. This is further evidence that matter is composed of atoms, since atoms would not be destroyed in a chemical reaction. ...
... reaction equals the mass of the products. This is further evidence that matter is composed of atoms, since atoms would not be destroyed in a chemical reaction. ...
The Building Blocks of Matter
... • Dalton said that every atom of the same element is exactly alike… NOT SO. They do have the same # of protons; however, they do not necessarily have the same # of neutrons! • This means that different atoms of the same element may/will have different masses. • These are: isotopes (atoms having the ...
... • Dalton said that every atom of the same element is exactly alike… NOT SO. They do have the same # of protons; however, they do not necessarily have the same # of neutrons! • This means that different atoms of the same element may/will have different masses. • These are: isotopes (atoms having the ...
Ch 4-1 Notes
... Scandium (Sc), Gallium (Ga), Germanium (Ge). When they were discovered, their properties were very similar to those predicted by Mendeleev. His table was accepted by the scientific community as a valuable tool. Two questions that remained were a) why could most of the elements be arranged in the ord ...
... Scandium (Sc), Gallium (Ga), Germanium (Ge). When they were discovered, their properties were very similar to those predicted by Mendeleev. His table was accepted by the scientific community as a valuable tool. Two questions that remained were a) why could most of the elements be arranged in the ord ...
Match the person / institution with the concept / discovery
... 21. What behavior of the cathode ray did Thomson witness? a. It traveled in a straight line. b. It bent toward the negative plate and away from the positive plate. c. It bent toward the positive plate and away from the negative plate. d. The behavior of the rays was erratic and could not be predicte ...
... 21. What behavior of the cathode ray did Thomson witness? a. It traveled in a straight line. b. It bent toward the negative plate and away from the positive plate. c. It bent toward the positive plate and away from the negative plate. d. The behavior of the rays was erratic and could not be predicte ...
Webquest: Atomic Theories and Models – an Historical Work in
... Rutherford and Bohr Break the “Plum Pudding” Model Go to http://www.pbs.org/wgbh/aso/databank/entries/dp13at.html and use the information found there to answer the following questions: 12. What was the “plum pudding” model of the atom and its electrons? 13. How much smaller was the nucleus, than the ...
... Rutherford and Bohr Break the “Plum Pudding” Model Go to http://www.pbs.org/wgbh/aso/databank/entries/dp13at.html and use the information found there to answer the following questions: 12. What was the “plum pudding” model of the atom and its electrons? 13. How much smaller was the nucleus, than the ...
chemistry chapter 11 & 12
... II. Blocks and Groups A. s-Block, Groups 1 and 2 1. Group 1 - The alkali metals a. One s electron in outer shell b. Soft, silvery metals of low density and lo c. Highly reactive, never found pure in natur 2. Group 2 - The alkaline earth metals a. Two s electrons in outer shell b. Denser, harder, st ...
... II. Blocks and Groups A. s-Block, Groups 1 and 2 1. Group 1 - The alkali metals a. One s electron in outer shell b. Soft, silvery metals of low density and lo c. Highly reactive, never found pure in natur 2. Group 2 - The alkaline earth metals a. Two s electrons in outer shell b. Denser, harder, st ...
02Ch02chemistry2005
... chemical behavior of an atom depends on number of electrons in its outermost shell ...
... chemical behavior of an atom depends on number of electrons in its outermost shell ...
Learn About the Different Types of Elements on the Periodic Table
... Trends in the Periodic Table The properties of the elements exhibit trends. These trends can be predicted using the periodic table and can be explained and understood by analyzing the electron configurations of the elements. Elements tend to gain or lose valence electrons to achieve stable octet for ...
... Trends in the Periodic Table The properties of the elements exhibit trends. These trends can be predicted using the periodic table and can be explained and understood by analyzing the electron configurations of the elements. Elements tend to gain or lose valence electrons to achieve stable octet for ...
worksheet i—extra credit
... 2. Which element is the most reactive metal?________________________________________________________________ 3. Which element is more reactive—Beryllium or Barium?_____________________________________________________ 4. Which element is more reactive—Iodine or Chlorine?______________________________ ...
... 2. Which element is the most reactive metal?________________________________________________________________ 3. Which element is more reactive—Beryllium or Barium?_____________________________________________________ 4. Which element is more reactive—Iodine or Chlorine?______________________________ ...
My Boudoir
... protons in the ________ nucleus 1. Put the number of _______ neutrons in the ________ 2. Put the number of _________ nucleus 3. Put a dot for each electron in the ______ first energy ...
... protons in the ________ nucleus 1. Put the number of _______ neutrons in the ________ 2. Put the number of _________ nucleus 3. Put a dot for each electron in the ______ first energy ...
01 Intro Chemistry
... chemical behavior of an atom depends on number of electrons in its outermost shell ...
... chemical behavior of an atom depends on number of electrons in its outermost shell ...
LBC1_Sec3_Unit01_Alchemy
... How can atoms of the same element be different? • Isotopes of an element have the same number of protons and electrons but different numbers of neutrons. • The average atomic mass of an element listed in the periodic table is the weighted average mass of the naturally occurring isotopes of that elem ...
... How can atoms of the same element be different? • Isotopes of an element have the same number of protons and electrons but different numbers of neutrons. • The average atomic mass of an element listed in the periodic table is the weighted average mass of the naturally occurring isotopes of that elem ...
Discussion Notes (cont.)
... How can atoms of the same element be different? • Isotopes of an element have the same number of protons and electrons but different numbers of neutrons. • The average atomic mass of an element listed in the periodic table is the weighted average mass of the naturally occurring isotopes of that elem ...
... How can atoms of the same element be different? • Isotopes of an element have the same number of protons and electrons but different numbers of neutrons. • The average atomic mass of an element listed in the periodic table is the weighted average mass of the naturally occurring isotopes of that elem ...
Chapter 2 Chemistry
... chemical behavior of an atom depends on number of electrons in its outermost shell ...
... chemical behavior of an atom depends on number of electrons in its outermost shell ...
Document
... The deuterium isotope is heavier than the hydrogen isotope since it has an extra neutron. Water produced from this isotope is known as “heavy” water, which is used in nuclear reactors to absorb neutrons. ...
... The deuterium isotope is heavier than the hydrogen isotope since it has an extra neutron. Water produced from this isotope is known as “heavy” water, which is used in nuclear reactors to absorb neutrons. ...
Atomic Structure Ch2 powerpoint
... off their atoms. • Oil droplets picked up electrons became negative • Increased the + charge until the droplet hovered. • Took measurements and calculated the charge on the electron. ...
... off their atoms. • Oil droplets picked up electrons became negative • Increased the + charge until the droplet hovered. • Took measurements and calculated the charge on the electron. ...
Atomic Theory - davis.k12.ut.us
... He organized the 56 elements that were known in 1869 according to similarities and masses and noticed the periodicity (repeating pattern) in their properties. He was puzzled by inconsistencies like Tellurium and Iodine (he thought Iodine should be heavier) and attributed it to inaccuracies in atomic ...
... He organized the 56 elements that were known in 1869 according to similarities and masses and noticed the periodicity (repeating pattern) in their properties. He was puzzled by inconsistencies like Tellurium and Iodine (he thought Iodine should be heavier) and attributed it to inaccuracies in atomic ...
Chapter 20 Oxidation-Reduction Reactions
... 1.Write the isotope notation for carbon-14: 2.Write the isotope notation for carbon 12: 3.What is the mass number of carbon 13? 4. Use your periodic table to determine the atomic mass of carbon. Write it here. 5. How many neutrons does carbon have? 6.Learning objective here! Explain the difference b ...
... 1.Write the isotope notation for carbon-14: 2.Write the isotope notation for carbon 12: 3.What is the mass number of carbon 13? 4. Use your periodic table to determine the atomic mass of carbon. Write it here. 5. How many neutrons does carbon have? 6.Learning objective here! Explain the difference b ...