chemistry

posted by .

how do i do this:
give the number of protons, electrons, and neutrons in each of the following atoms.

108
47 Au

40
20 Ca

23
11 Na

  • chemistry -

    The first one.
    The atomic number is the number of protons. That is 47 in this example. The 108 is the mass number and gives the number of protons + the number of neutrons. Therefore, the number of neutrons is the mass number minus the number of protons. The number of electrons is the same as the number of protons.

  • chemistry -

    ok so for the calcium one would it be
    20 electrons
    20 protons
    and
    20 neutrons?

  • chemistry -

    yes, yes, and yes.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science

    Hi i have a science exam on tuesday and really need some help to see if what im doing is right. The question is - How many electrons, protons and neutrons are in the following: a) Br1- b) Be2+ c) Ne d) P1- e) Fe AND MY ANSWERS ARE: …
  2. Science

    1. Which statement about subatomic particles is NOT true?
  3. chemistry

    Compare a mole of Ag-108 and a mole of Pt-195 using atoms, protons, electrons, and neutrons.
  4. Chemistry

    I would really appreciate help with the following, as I don't understand how to work it. Thank you in advance for explaining it to me. The mass number (A) of a nuclide is equal to the number of --- blank --- in one of its nuclei. There …
  5. chemistry

    Which of the following statements about protons are false?
  6. Chemistry

    Atom A- 6 protons, 6 electrons, 7 neutrons Atom D- 6 protons, 6 electrons, 8 neutrons Atom X- 7 protons, 7 electrons, 8 neutrons Atom Z- 8 protons, 8 electrons, 9 neutrons Which two atoms are isotopes of the same element?
  7. Chemistry

    Fill in the missing information in the following table of four neutral atoms Symbol- 37Cl number of protons- 36 46 number of neutrons- 42 number of electrons- 33 mass number- 77 106
  8. Biology HELP!

    1. Which of the following correctly identifies the composition of an oxygen atom?
  9. Earth Science (check answers)

    1. The mass number of an atom is obtained by totaling the number of_____and____. a. electrons and protons b. electron and neutrons c.protons and neutrons d.neutrons and isotopes Is it B?
  10. chemistry

    Which answer choice correctly describes why larger atoms tend to break apart?

More Similar Questions