Multiple Choice
Naturally occurring lithium (Li) consists of only two isotopes, Li-6 (6.02 u) and Li-7 (7.02 u) , where the isotopic masses are given in parentheses. Use the periodic table and determine which isotope is present in the larger percentage in the natural element.
A) Li-6
B) Li-7
C) each is present at 50%
D) cannot be determined from the information available
Correct Answer:

Verified
Correct Answer:
Verified
Q76: How many moles of oxygen atoms are
Q77: Naturally occurring neon (Ne)has the following isotopic
Q78: Neutral isotopes of the same element have
Q79: A neutral isotope of an element contains
Q80: Oxalic acid is found in many plants,
Q82: The most accurate way to determine atomic
Q83: The average relative mass of an ozone
Q84: Isotopes of the same element always have
Q85: How many silicon atoms (Si)are contained in
Q86: Atoms are neutral. How can they have