Answer:
heat flow
Explanation:
heat flow moves to a higher temperature to a lower temperature
Answer:
In the given case, the atomic number of the given atom is 15, hence its nucleus contains 15 protons. The number of protons and electrons are the same in atom and that is what keeps it neutral. In the second case, the atomic number is 20. Hence, the atom will contain a total of 20 protons in its nucleus.
Explanation:
They are two different elements, C. Elements
Answer:
Energy decreases and wavelength gets longer.
Explanation:
The energy of a wave is given by :

Where
h is Planck's constant
f is the frequency of the wave
As frequency decreases, the energy of the wave also decreases and wavelength gets longer. Hence, the option is (d).