calculate the average atomic mass for neon if its abundance in nature is 90.5% neon-20, 0.3% neon-21, and 9.2% neon-22

1 answer:

4 0

The average atomic mass of Neon would simply be the sum of the weighted average of each isotope. That is:

average atomic mass = 0.905 * 20 + 0.003 * 21 + 0.092 * 22

average atomic mass = 20.187 amu

You might be interested in

During which process does an atom gain one more electron

Colt1911 [192]

Reduction I think... not entirely sure though... when a molecule loses oxygen...?

6 0

4 years ago

Read 2 more answers

How many independent variables can you have in an experiment for it to be valid?

Lemur [1.5K]

Answer:

There are often not more than one or two independent variables tested in an experiment.

3 0

3 years ago

Who can help me with a few chemistry balancing equtions?

hoa [83]

<span>Who can help me with a few chemistry balancing equations?
Me. Just show me the equations :)</span>

6 0

3 years ago

Which of the following steps correctly converts 3 moles of fluorine to an equivalent number of particles of fluorine? Divide Avo

Eva8 [605]

Answer:

Multiply 3 by Avogadro's number.

Explanation:

The mole can be defined as the amount of a substance that contains Avogadro’s number of particles, 6.02 x 10²³.

For elementary particles:

Number of particles=

number of moles x 6.02 x10²³

From the question,

Number of moles = 3moles

Number of particles = 3 x 6.02 x10²³

8 0

3 years ago

The half-life of tritium is 12.3 years. If 48.0 mg of tritium is released from a nuclear power plant during the course of a mish

Thepotemich [5.8K]

Half life is defined as the time when the final concentration reduced to half of the initial value.

Thus, for first half life, the remaining percentage of the reactant is 50 percent that is $\frac{50}{100}=\frac{1}{2}$

Now, for second half life, the remaining percentage will be 50 percent of the remaining 50 percentage that is $\frac{50}{2}=25$ $\frac{25}{100}=\frac{1}{4}$ or $\frac{1}{2^{2}}$