The mass of thallium (Tl) on the periodic table is given as 204.3833 without any units. There are 47 isotopes of thallium, but only two are stable and abundant, thallium-203, with a mass of 202.9723 amu, and thallium-205, with a mass of 204.9744 amu. What is the percentage of each of these isotopes in naturally occurring thallium?
A) 29.5% 203Tl and 70.5% 205Tl
B) 70.5% 203Tl and 29.5% 205Tl
C) 25.5% 203Tl and 74.5% 205Tl
D) 74.5% 203Tl and 25.5% 205Tl
E) 32.5% 203Tl and 67.5% 205Tl
Correct Answer:
Verified
Q23: For each of the elements below, there
Q24: The sixth period of the periodic table
Q25: A Q26: What is the symbol for silicon? Q27: For each of the elements below, there Q29: What is the symbol for magnesium? Q30: Which of the following is an alkaline Q31: Zinc has five naturally occurring isotopes with Q32: Enriched weapons-grade uranium consists of 80% uranium-235 Q33: An unknown element is found to contain
A)S
B)Sn
C)Sr
D)Se
E)Si
A)M
B)Mg
C)Mn
D)Mo
E)Ma
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents