Multiple Choice
The element bromine,Br (atomic number 35) ,has two major isotopes of similar abundance,both around 50 percent.The atomic mass of bromine is reported in the periodic table as 79.904 atomic mass units.Choose the most likely set of mass numbers for these two bromine isotopes.
A) Br-80,Br-81
B) Br-79,Br-80
C) Br-79,Br-81
D) Br-78,Br-80
Correct Answer:

Verified
Correct Answer:
Verified
Q8: Which of the following is a metalloid?<br>A)antimony
Q9: Where did the atoms that make up
Q10: If a baseball were scaled up to
Q11: What happens to the properties of elements
Q12: Why are the atomic masses listed in
Q14: Elements that are in the same _
Q15: The nucleus of an electrically neutral iron
Q16: What does the following element description actually
Q17: In what sense can you truthfully say
Q18: Which element would have chemical properties the