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muminat
2 years ago
7

The element in the top left corner of the periodic table is ______________.answer:

Chemistry
1 answer:
rodikova [14]2 years ago
5 0
The answer is hydrogen
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3 years ago
Why do adults have stem cells
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3 0
3 years ago
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12. What is the frequency of a photon with an energy of 3.03 x 10-19 J?
bazaltina [42]

Answer:

u=4.57x10^5GHz

Explanation:

Hello.

In this case, given the formula:

E=h*u

Whereas E is the energy, h the Planck's constant and u the frequency of the photon. Thus, solving for it, we obtain:

u=\frac{E}{h}=\frac{3.03x10^{-19}J}{6.63x10^{-34}J*s}\\  \\u=4.57x10^{14}s^{-1}

Or also:

u=4.57x10^{14}Hz*\frac{1GHz}{1x10^9Hz}\\ \\u=4.57x10^5GHz

Best regards.

5 0
3 years ago
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andre [41]
Ubnkariotic, mate. not Chloroplast

6 0
3 years ago
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DNA in a cell replicates.
Shtirlitz [24]

Answer:

I'm assuming it would be B, since it makes sense. If not, I'm really sorry.

Explanation:

5 0
3 years ago
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