When an atom loses electrons it becomes___

1 answer:

8 0

It becomes an ion. An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion.

Hope this helps!

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Calculate the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck's constant is 6.626 x 10-34 jou

UNO [17]

9.01 × 10⁻²⁶ J

<h3>Explanation</h3>

ΔE = h · f

Where

ΔE the change in energy,
h the planck's constant, and
f frequency of the emission.

However, only λ is given.

f = c / λ

Where

f frequency of the emission,
λ wavelength of the emission, and
c the speed of light.

For this emission:

f = 2.998 × 10⁸ / 2.21 = 1.36 × 10⁸ s⁻¹.

ΔE = h · f = 6.626 × 10⁻³⁴ × 1.36 × 10⁸ = 9.01 × 10⁻²⁶ J

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If a satellite or spaceship explodes in outer space, you can see the explosion from a distance but you cannot hear it. Why?

labwork [276]

C) Sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.

There is no air for the sound waves to travel, therefore, no sound waves being transmitted.

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3 years ago

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a radioisotope has a half life of three hours how much of a 120g sample remains after 9 hours. what will the g amount be after 3

aksik [14]

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