Answer:
What single percentage change is equivalent to a 11% increase followed by a 15% increase?
Explanation:
What single percentage change is equivalent to a 11% increase followed by a 15% increase?
<u>Answer:</u> The correct answer is Option E.
<u>Explanation:</u>
Atomic radius is defined as the total distance measured from the nucleus of an atom to the outermost shell.
<u>Trend down the group:</u>
Moving from top to bottom, a new shell gets add up around the nucleus and the outermost shell gets far away from the nucleus. Due to this, the distance between the nucleus and outermost shell increases, which results in the increase of atomic radii of the atom.
<u>Trend across the period:</u>
Moving from left to right in a period, more and more electrons gets add up in the same shell. The attraction between the last electron and the nucleus increases. This results in the shrinkage of size of an atom. Thus, decreasing the atomic radii of the atom.
Hence, the correct answer is Option E.
Answer:
I literally just woke up for school hehe
Explanation:
(a)
The relation between frequency and wavelength is shown below as:
c is the speed of light having value
Given, Wavelength = 505 nm
Also, 1 m =
nm
So,
Wavelength =
m
Thus, Frequency is:
(b)
Also,
Where,
h is Plank's constant having value
c is the speed of light having value
So,


(c)
Electromagnetic spectrum is range of the frequencies and their respective wavelengths of the various type of the electromagnetic radiation.
In order of the increasing frequency and the photon energy and the decreasing wavelength the spectrum are:
Red , Orange, Yellow, Green, Blue, Indigo, Violet
Increasing wavelength is the opposite trend. Thus, The longest visible wavelength is red and the shortest is violet.
I would say #3 I’m sorry if it’s wrong tho