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jonny [76]
2 years ago
8

How many neutrons are in lithuim-8

Chemistry
1 answer:
irinina [24]2 years ago
4 0

Answer:

5 neutrons

Explanation:

There five isotopes of lithium. The most stable and abundant is lithium-7.

Its percentage is 92.5%. It has four neutrons. All lithium isotopes have same atomic number but different atomic mass because of different number of neutrons.

Lithium-8 have five neutrons.

Lithium-9 have six neutrons.

Lithium-11 have eight neutrons.

Lithium-4 has one neutron.

Lithium is alkali metal.

It is present in 1st group.

Its atomic number is 3.

Its atomic mass is 7 amu.

Lithium salts are used in psychiatric medicine.

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Convert 675 nanograms to milligrams.
STALIN [3.7K]

675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

<h3>How to convert nanograms to milligrams?</h3>

Nanograms is a unit of mass equal to 0.000000001 grams and has a symbol of ng.

On the other hand, milligrams is another unit of mass equal to 0.001grams and has a symbol of mg.

Nanograms and milligrams are both units of mass and can be inter-convertible as follows:

1 nanogram = 1 × 10-⁶ milligram

According to this question, 675 nanograms is equivalent to 675 × 10-⁶ milligrams.

Therefore, 675 nanograms is equivalent to 6.75 × 10-⁴ milligrams.

Learn more about milligrams at: brainly.com/question/20320382

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Answer 2: The correct answer is d. convergent oceanic-oceanic boundary.

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