Study

Atoms and The Periodic Table Review

  •   0%
  •  0     0     0

  • Which atom has a greater atomic radius- arsenic or bromine?
    arsenic; it is farther left that bromine
  • What is a row on the periodic table called?
    period
  • How is the number of protons for an atom determined?
    Look at the atomic number on the periodic table.
  • Explain how to write an abbreviated electron configuration.
    Located the noble gas that comes in the period before the desired atom, write its symbol in brackets, and count/summarize each orbital section until finished.
  • What is the charge of an electron?
    -1
  • How is mass number for an atom determined?
    number of protons + number of neutrons OR atomic number + number of neutrons
  • What is the name for the group 2 elements?
    Alkaline Earth Metals
  • What is the name for group 18 elements?
    Noble Gases
  • What are the smaller particles called that make up both protons and neutrons?
    quarks
  • What is a column on the periodic table called?
    group or family
  • Which particles are found in the nucleus?
    protons and neutrons
  • What is unique about the elements in group 18?
    They have 8 valence electrons, so they are stable and will not readily form bonds with other atoms.
  • Which particles are found in the cloud that surrounds the nucleus?
    electrons
  • What is the most common isotope for the following atom. Explain how you know.
    Na-23; The average atomic mass is 22.9, which would round to 23. Sodium is most commonly found with a mass of 23.
  • Fill in the missing information.
    Boron Atomic #- 5 Atomic Mass- 11 # protons- 5 # neutrons- 6 # electrons- 5
  • What does the term "cation" mean?
    A positively charged atom that has lost electrons.
  • Which types of atoms are poor conductors, dull, and found to the right of the staircase?
    nonmetals
  • Which isotope is represented by the Bohr model in the picture. Give the symbol and mass number for the isotope.
    Mg-24
  • What is an isotope?
    Atoms of the same element with different masses.
  • What is the name for the group 1 elements?
    Alkaline Metals
  • What is an ion?
    A charged atom.
  • What is the charge of a proton?
    +1
  • Draw a Bohr model for an atom of Na-23.
    See instructor drawing. (11 protons, 12 neutrons, 11 electrons, 3 electron shells-2 electrons in shell 1, 8 electrons in shell 2, and 2 electrons in shell 3)
  • How many electrons can fit into the following energy levels (shells): 1, 2, 3?
    1- two electrons 2- eight electrons 3- eight electrons
  • What are valence electrons?
    Electrons that are found in the outermost energy level of an atom.
  • Which type of atoms are shiny, good conductors, and found to the left of the staircase?
    metals
  • What is the charge of a neutron?
    0 (neutral)
  • In which orbital block is tin found?
    p
  • What does the group number tell about an atom?
    The number of valence electrons present.
  • What is the name for group 17 elements?
    Halogens