Following Aufbau rule and Hund principle, the order of filling of the orbitals is this:
So, the first, second, and fourth option are not correct.
The third option does meet the filling order.
Answer:
The emission of the light waves ..................... which means that THE TROUGHS OF ONE WAVE AND THE CREST OF ANOTHER overlap.
When the trough and the crest of wave overlap, it results in constructive interference and the amplitude of the two waves are added together to form a larger amplitude.<span />
Is divided by the same number that goes into the number being divided evenly so there are no remainers
example....
2 2 1
__ ÷ __ = __
4 2 2
A. helium, neon and argon, because they are in the same group or column
Answer:
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores.
