Answer:
N
Explanation:
Electronegativity increases as you move from left to right across a period, and decreases as you move down the groups.
Explanation:
Expression for the kinetic energy is as follows.
K.E =
Now, total kinetic energy will be as follows.
K.E = =
Since, this energy converts into electromagnetic radiation of wavelength 121.6 nm.
Relation between energy and photon is as follows.
Energy of photon =
=
=
v =
= m/s
Thus, we can conclude that atoms were moving at a speed of m/s before the collision.
Helium would be the least I think
I am sorry i wish i could help you but i dont know the answer either.
No. Changing of color is a physical change.