3 years ago

Does Moseley's assertions about the arrangement of elements _________ Mendeleev's earlier work on the periodic table?

1 answer:

7 0

I believe it’s discarded because Moseley rearranged the elements by the number of protons is instead of atomic weight like Mendeleev did

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Sholpan [36]

I think it would be false hope this helps

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3 years ago

Vlad1618 [11]

There are
A. 6 significant figures
B.5 sig figs
C.2 sig figs
D.5 sig figs

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3 years ago

Lyrx [107]

Answer:

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Explanation:

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3 years ago

stiv31 [10]

Answer: a) $Frequency=666\times10^{12}Hz-789\times10^{12}Hz$

b) $Wavelength=380nm-450nm$

Explanation: Visible light is a form of electromagnetic wave.

Wavelength is defined as the distance between two successive crests of a wave. It is represented as symbol $\lambda$ .

Frequency is defined as the number of complete cycles happening per second. It is represented by the symbol $\nu$ .

Wavelength and Frequency follow inverse relation,

$\nu=\frac{c}{\lambda}$

where, c = speed of light = $3\times10^8m/s$

Wavelength and frequency of a wave is usually expressed in a range.

a) $\text{Frequency of visible light}=666\times10^{12}Hz-789\times10^{12}Hz$

b) $\text{Wavelength of visible light}=380nm-450nm$

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3 years ago

Virty [35]

Answer:

you need only one independent variable because if not, you wont know what factors have changed your experiment.

Explanation:

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3 years ago