Isotopes and Avg. Atomic Mass Notes

What differentiates the isotopes of an element?

One of the isotopes of sulfur is represented as sulfur-35 or S-35. What does the number 35 signify?

Element A has 15 protons. Determine the number of neutrons in its isotope with mass number 33.

A neutral atom of chlorine-35 can be described as the following EXCEPT

An element with 11 protons, 11 electrons, and 12 neutrons is identified as

Which is the best nuclear symbol for a potassium atom with 21 neutrons?

The correct hyphen notation for the nuclear symbol given is

Which of the following is the nuclear symbol for lithium-6

The number 84 in strontium - 84 represents

Using the atomic masses and relative abundance of the isotopes of nitrogen given below, determine the average atomic mass of nitrogen.

N-14: 14.003 amu; 99.63% N-15: 15.000 amu; 0.37%

Vitellium (Vi) has the following composition:

Vi–188: 187.9122 amu; 10.861%

Vi–191: 190.9047 amu; 12.428%

Vi–193: 192.8938 amu; 76.711%

Based on this data, what can you predict about the average atomic mass of vitellium?

The average atomic mass of oxygen is 15.9994 amu. The atomic masses of its three isotopes are as follows:

O-16: 15.995 amu; O-17: 16.999 amu; O-18: 17.999 amu

Which isotope is most likely to have the greatest abundance in nature?