* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Trends in the Periodic Table
Survey
Document related concepts
Transcript
Name: _________________________________ Period: ____ Date: ___ / ___ / ___ Atomic Dimensions #5 Use the following table to answer questions 1 - 8. Element Hydrogen Helium Beryllium Oxygen Magnesium Argon Symbol H He Be O Mg Ar Atomic Number 1 2 4 8 12 18 1. __________________ An atom of this element has 1 proton and 1 electron 2. __________________ An atom of this element has 8 protons 3. __________________ An atom of this element has 10 more protons than an atom of oxygen 4. __________________ This element has an atomic number of 12 5. __________________ An atom of this element contains twice as many protons as helium 6. __________________ An atom of this element has 12 electrons 7. __________________ An atom of this element has 4 more electrons than beryllium 8. __________________ An atom of this element has twice as many electrons as hydrogen In each of the following statements, you are given a pair of elements and important information about each element. Use this information to determine if the pair of elements are isotopes or different elements. Indicate your answer on the line provided by writing “isotopes” or “different elements”. 9. Element D has 6 protons and 7 neutrons. Element F has 7 protons and 7 neutrons. 10. Element J has 27 protons and 32 neutrons. Element L has 27 protons and 33 neutrons. 11. Element X has 17 protons and 18 neutrons. Element Y has 18 protons and 17 neutrons. 12. Element Q has 56 protons and 81 neutrons. Element R has 56 protons and 82 neutrons. 13. Element W has 8 protons and 8 neutrons. Element V has 7 protons and 8 neutrons. Name: _________________________________ Period: ____ Date: ___ / ___ / ___ Atomic Dimensions #6 The table below contains information about several elements. Use this table to review the concepts of atomic number, mass number, numbers of subatomic particles (protons, neutrons, and electrons), isotopes, and charged and uncharged atoms. In each case, enough information has been provided for you to fill in all of the blanks. For the far right column, if an atom has a charge, label it with the appropriate sign and number (ex. +1 ion). If an atom is neutral, check your periodic table. If the atom listed is not the most common isotope, write “Isotope” in the blank. If the atom is the most common isotope, write “Neutral Atom” in the blank. The first three have been completed for you as examples Number of Neutrons Number of Electrons Isotope, Ion or Neutral Atom Element Symbol Atomic Number Mass Number Number of Protons Xenon Xe 54 134 54 80 54 Isotope Magnesium Mg+2 12 24 12 12 10 +2 ion Carbon C 6 12 6 6 6 Neutral Atom Aluminum Al 27 13 Bromine 35 80 13 45 36 146 92 Uranium U 92 Helium He 2 4 2 Helium He 2 5 2 3 7 2 74 184 73 Lithium Tungsten W C Nitrogen Silver 14 7 6 8 14 108 47 47