There are three ways that scientists have proved that these sub-atomic particles exist. They are direct observation, indirect observation or inferred presence and predictions from theory or conjecture. Scientists in the 1800's were able to infer a lot about the sub-atomic world from chemistry.
Answer:
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Explanation:
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Answer:
Explanation:
These are multiples and submultiples of the unit liters.
pL, mL, dL and kL
pL<mL< dL< kL
Units can be expressed in form of multiples and submultiples form using the following prefixes:
Note: submultiples are lower than multiples:
submultiples 10⁻¹ deci(d)
10⁻³ milli(m)
10⁻¹² pico(p)
multiples 10 deca(da)
10³ kilo(k)
Answer:
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Explanation:
Most hydrogen atoms have a nucleus with only a single proton. About 1 in 10,000 hydrogen nuclei, however, also has a neutron; this particular isotope is called deuterium. An extremely rare hydrogen isotope, tritium, has 1 proton and 2 neutrons in its nucleus. ... Most hydrogen atoms have only a proton in the nucleus
the correct answer is A
A diatom is a(n) <u>Singled-celled organism</u> because it has <u>only one cell.</u>
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<em>(study island)</em>
