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SOVA2 [1]
3 years ago
14

a que grupo en la tabla periodica pertenece el magnesio, potasio, calcio, azufre, oxigeno y el cloro?

Chemistry
1 answer:
ladessa [460]3 years ago
4 0

Answer:

Group 2A — The Alkaline Earth Metals. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Explanation:

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Calculate the wavelength of radiation with a frequency of 8.0 x 10^14 Hz.
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Answer:

Wavelength of radiation is 0.375×10⁻⁶ m

Explanation:

Given data:

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Wavelength of radiation = ?

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Frequency and wavelength of lights are inversely proportional to each other.

The wave of light having highest frequency have shortest wavelength and the light with the shortest frequency having highest wavelength.

Formula:

Speed of light = wavelength × frequency

c = λ × f

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This formula shows that both are inversely related to each other.

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Wavelength is designated as "λ" and it is the measured in meter. It is the distance between the two crust of two trough.

Now we will put the values in formula.

λ = 3×10⁸ m/s  / 8.0×10¹⁴ Hz

λ = 0.375×10⁻⁶ m

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