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beks73 [17]
3 years ago
10

What metric measurement is similar to a mile?

Chemistry
2 answers:
Dmitriy789 [7]3 years ago
4 0
A kilometer. It's about .62 miles and is the largest unit of measurement for the metric system.
amm18123 years ago
4 0
Kilómetro is just about a mile
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When c-14 transmutates into n-14, this represents 14 6 carbon becomes 14 7 nitrogen plus blank an alpha decay electron capture n
Evgesh-ka [11]
Answer is: <span>negative beta decay.
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Nuclear reaction: ¹⁴C → ¹⁴N + e⁻ + νe (electron antineutrino).
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7 0
3 years ago
Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy
SVETLANKA909090 [29]

. The energy of shells in a hydrogen atom is calculated by the formula E = -Eo/n^2 where n is any integer, and Eo = 2.179X10^-18 J. So, the energy of a ground state electron in hydrogen is:

E = -2.179X10^-18 J / 1^2 = -2.179X10^-21 kJ

Consequently, to ionize this electron would require the input of 2.179X10^-21 kJ


2. The wavelength of a photon with this energy would be:

Energy = hc/wavelength

wavelength = hc/energy

wavelength = 6.626X10^-34 Js (2.998X10^8 m/s) / 2.179X10^-18 J = 9.116X10^-8 m

Converting to nanometers gives: 91.16 nm


3. Repeat the calculation in 1, but using n=5.


4. Repeat the calculation in 2 using the energy calculated in 3.

7 0
3 years ago
Read 2 more answers
Please help , science tho. by the way i have to do 5
kap26 [50]

Answer:

850

Explanation:

It's between 840 and 860

8 0
2 years ago
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Answer:

Explanation:

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8 0
3 years ago
What is the chemical formula of water?<br> O N20<br> O H20<br> O NH3<br> O HO3
svet-max [94.6K]

Answer:

H20

Explanation:

3 0
3 years ago
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