Atoms And Isotopes Flashcards
1
Q
What are isotopes ?
A
Atoms of the same element
2
Q
What are the mass numbers for the two isotopes of chlorine?
A
Cl35
Cl37
3
Q
What is the difference between Cl35 and Cl37?
A
Cl35 has 18 neutrons
Cl37 has 20 neutrons
4
Q
What is the abundance of chlorine-35?
A
75%
5
Q
What is the abundance of chlorine-37?
A
25%
6
Q
What is abundance?
A
Percentage of atoms with specific atomic mass
7
Q
What is the equation for relative atomic mass (RAM)?
A
Sum of (isotope abundance x isotope mass) / sum of abundance of all isotopes (100)
