Has only 7 electrons so it want to bond with other elements so its very reactive and unstable. Hope this helps
Percentage = 100 - 53.3% - 6.7%
Percentage = 40%
Answer:
<h3><u>Question</u><u>:</u><u>-</u></h3>
What makes up a film badge?
<h3><u>Answer</u><u>:</u><u>-</u></h3>
a panel of photographic film exposed to the air
Answer:
The coffee is the solvent. The sugar is the solute. The sweetened coffee is the solution.
Explanation:
Number of photons can be calculated by dividing the needed energy by the energy per photon.
The minimum energy needed is given as 2 x 10^-17 joules
Energy per photon = hc / lambda where h is planck's constant, c is the speed of light and lambda is the wavelength
Energy per photon = (<span>6.626 x 10^-34 x 3 x 10^8) / (475 x 10^-9)
= 4.18 x 10^-19 J
number of photons = (2 x 10^-17) / (4.18 x 10^-19)
= 47.79 photons which is approximately 48 photons</span>