<span>In the electron cloud model, the denser areas represent that there is a great probability that a good number of electrons are ganged up or crowded in that area. The electrons affect the density of some parts of the electron cloud when they condense in those locations.</span>
it would need to gain 2 more for it to achieve a stable configuration
the best way to remember this is the noble gasses all have 8 valence electrons and that they are the most stable elements on the periodic table
Answer:
The wavelength of the radio wave is 3.003 m.
The energy of the radio wave is .
Explanation:
Frequency of the radio waves, ν = 99.9 MHz =
Wavelength and frequency are related to each other by realtion:
= Wavelength of the wave
c = speed of the light
ν = Frequency of the wave
The wavelength of the radio wave is 3.003 m.
The energy of the electromagnetic wave is given by Planck's equation:
h = Planck's constant =
The energy of the radio wave with 99.9 MHz frequency will be:
The energy of the radio wave is .
There are 30 protons and 39 neutrons in the nucleus.
This must me the isotope of an element with an atomic mass close to 69 u.
The only candidates are Zn and Ga.
Zn has a zinc-69 isotope with mass 68.926 u.
Ga has a gallium -69 isotope with mass 68.925 u.
The isotope is probably
.
It has 30 protons and 39 neutrons.
Answer: The partial pressure of is 0.35 atm.
Explanation:
Given: Total pressure = 0.98 atm
Partial pressure of = 0.48 atm
Partial pressure of Ar = 0.15 atm
Partial pressure of = ?
Total pressure is the sum of partial pressure of each component present in a mixture of gases.
Hence, partial pressure of is calculated as follows.
Total pressure =
Substitute the values into above formula as follows.
Thus, we can conclude that the partial pressure of is 0.35 atm.