Answer:
Approximately 10,5
Explanation:
The question is not really very specific, because it would need the percentages of those isotopes in the nature. As they are not shown, it should be the median of those two numbers.
atomic weight ≈
= 10,5
If you check a periodic table, you'll see it's actually 10,8, but that's because of the thing I told you at first (percentages missing).
Hope I could help.
Answer:
E = hv
where
E = energy,
h = Planck's constant
v = frequency.
Explanation:
Einstein proposed that electromagnetic energy was transmitted in quanta or packets. This gave rise to modern Quantum Physics.
The usual representation of a photon or energy packet is
E = hf
where f = frequency.
The frequency is related to the speed of light by
c = fλ
where
c = speed of light
λ = wavelength
Answer:
If we subtract 13.4 from 27.6 we will get 14.2 g.