it works very well for atoms with only one electron, like H or He+, but not at all for multi-electron atoms.Bohr's model breaks down when applied to multi-electron atoms.
Leeward, because adiabatic heating is faster on the leeward side than the windward side due to its non-saturated air descent.
A or C for number 4 and for number 5 it could be C
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<em><u>The ground state of a quantum-mechanical system is its lowest-energy state; the energy of the ground state is known as the zero-point energy of the system. An excited state is any state with energy greater than the ground state. In quantum field theory, the ground state is usually called the vacuum state or the vacuum</u></em><em><u>.</u></em><em><u>.</u></em></h2>
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Answer: argon (Ar)
Ar, Z=18 => 1s2 2s2 2p6 3s2 3p6
The 3 level shell has 8 electrons. The element with one more electron, need to start a new shell to arrange for the last electron.
Argon is a noble gas. Its group in the periodic table is 18. All the noble gases have the last shell full, which conferes them a high stability and low reactivity.