5 Answered Questions for the topic Isotope Research

#### Can someone help me with these two chemistry problems?

I'm having trouble with them and idk what to do
2. A student has identified a material as a mixture. What is the minimum number of distinct substances that the student has detected in the...
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Isotope Research

10/26/16

#### An atom with 6 protons and 8 neutrons is an?

An atoms with 6 protons and and 8 nuetrons is an??

#### An isotope of iron (Fe) has 26 protons and 32 neutrons.

An isotope of iron (Fe) has 26 protons and 32 neutrons.
a. What is the approximate mass of this isotope?
b. Write the symbol for this isotope.

10/22/16

#### How are potassium-39, potassium-40, and potassium-41 different from each other? Write the isotope symbol for each?

How are potassium-39, potassium-40, and potassium-41 different from each other? Write the isotope symbol for each?

08/22/15

#### How long will it take..

A certain isotope has a half-life of 5.25 days. How long will it take for 30% of the sample to disintegrate?
Solutions are appreciated. Please answer. Arigatou sensei.

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