Isotopes

Front

How many neutrons are found in Potassium-39?

Back

20

Front

Isotope with 26 protons and 30 neutrons?

Back

Iron-56

Front

How many protons are in Cs-133?

Back

55

Front

How many neutrons are in Argon-40?

Back

22

Front

An element has 29 protons, 35 neutrons, and 29 electrons. What is the mass number of this element?

Back

64

Front

What is the difference between Sulfur-23 and Sulfur-25?

Back

Sulfur-25 has two more neutrons than Sulfur-23

Front

An isotope of Nitrogen has 13 neutrons. What is the identity of this isotope?

Back

Nitrogen-20

Front

How many neutrons are in Sodium-20?

Back

9

Front

Which isotope has 24 protons and 39 neutrons? Options: Chromium-63, Yttrium-63

Back

Chromium-63

Front

Carbon has an average atomic mass of 12.011 on the periodic table. Given this number is the weighted average of all of the isotopes of carbon, what would most likely be the most common isotope of carbon?

Back

Carbon-12