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Alexus [3.1K]
3 years ago
14

Which best describes a photon?

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
4 0
I say it is C: A quantum of light energy
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Which atom loses 2 electrons while forming an ion?
BabaBlast [244]

Answer:

it would be a cation ... i believe

Explanation:

To become a cation, a positively charged ion, an atom would have to lose at least two electrons  

7 0
3 years ago
Calculate the ionization energy, ????????, of the one‑electron ion Be3+. The electron starts in the lowest energy level, ????=1.
spin [16.1K]

Answer:

3.49X10⁻¹⁷ J

Explanation:

The energy of an electron is given by the equation:

E = - (2.18x10^{-18})Z^2(\frac{1}{n^2})

Where Z is the number of protons of the atom and n is the energy level of the electron. For Be, Z = 4.

When n tends to infinity (1/n²) tends to 0, and at this point, the electron has left the atom, so it has ionized.

The ionization energy then is the energy of the electron that left the atom less the energy of the electron in the energy level:

I.E = - (2.18x10⁻¹⁸)x4²x0 - (-(2.18x10⁻¹⁸)x4²x(1/1²))

I.E = 3.49X10⁻¹⁷ J

3 0
3 years ago
A cloud that forms near the ground
stiks02 [169]
Hey there!
Great question=)

Answer:Fog, these are clouds that form near the ground.

I hope this helps;)
8 0
3 years ago
Read 2 more answers
Dose mitochondria make necessary chemicals for the cell
Bezzdna [24]
Yes mitochondria does make necrssary chemicals for the cell therefore the answer to your question is yes
5 0
3 years ago
An electron in an atom is known to be in a state with magnetic quantum number ml=−1
Ulleksa [173]

Explanation:

It is known that the maximum value of ml is equal to the vale of l. But the minimum value of n is as follows.

                    n = l + 1

where,     n = principle quantum number

                l = azimuthal quantum number

Values of n can be 1, 2, 3, 4 and so on. Whereas the values of l can be 0, 1, 2, 3, and so on.

Also, "m" is known as magnetic quantum number whose values can be equal to -l and +l.

So, when n = 1 then l = 0 and m = 0.

When n = 2 then l = 1 and values of m will be equal to -1, 0, +1. As it is given that the magnetic quantum number ml = -1. Hence, it is only possible when n = 2.

Thus, we can conclude that the smallest possible value of the principal quantum number n of the state is 2.

5 0
3 years ago
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