Question 1: The following questions are based on elements and isotopes. The following expression will help you: 2xe- b) For the 13B3- isotope, what is the value of Z? c) An element has a mass number of 19, it has 7 neutrons and has lost an electron. Write the isotope in the xe format. d) An element has 2 isotopes. The first has the following configuration: Si?-. The second isotope has one less neutron. Write the formula of second isotope in the Xe format. e) A strange sample has 3 isotopes with abundances 1.4%, 24.1% and 74.5%. The atomic masses of the isotopes are 203.973, 205.974 and 207.657. Calculate the atomic mass of the material and propose what the material might be? f) If an atom loses a proton, what will happen?
Question 1: The following questions are based on elements and isotopes. The following expression will help you: 2xe- b) For the 13B3- isotope, what is the value of Z? c) An element has a mass number of 19, it has 7 neutrons and has lost an electron. Write the isotope in the xe format. d) An element has 2 isotopes. The first has the following configuration: Si?-. The second isotope has one less neutron. Write the formula of second isotope in the Xe format. e) A strange sample has 3 isotopes with abundances 1.4%, 24.1% and 74.5%. The atomic masses of the isotopes are 203.973, 205.974 and 207.657. Calculate the atomic mass of the material and propose what the material might be? f) If an atom loses a proton, what will happen?
ChapterU1: Alchemy: Matter, Atomic Structure, And Bonding
Section: Chapter Questions
Problem 11STP
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Transcribed Image Text:Question 1:
The following questions are based on elements and isotopes. The following expression will
help you:
2xe-
b) For the 13B3- isotope, what is the value of Z?
c) An element has a mass number of 19, it has 7 neutrons and has lost an electron. Write
the isotope in the xe format.
d) An element has 2 isotopes. The first has the following configuration: Si?-. The second
isotope has one less neutron. Write the formula of second isotope in the Xe format.
e) A strange sample has 3 isotopes with abundances 1.4%, 24.1% and 74.5%. The
atomic masses of the isotopes are 203.973, 205.974 and 207.657. Calculate the
atomic mass of the material and propose what the material might be?
f) If an atom loses a proton, what will happen?
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