1. Which of the following imposes the limit on the number of electrons in an ene
ID: 2012422 • Letter: 1
Question
1. Which of the following imposes the limit onthe number of electrons in an energy state of
an atom?
1. The Bohr model of the hydrogen atom
2. The law of conservation of energy
3. The Pauli exclusion principle
4. The theory of relativity
5. The Heisenberg uncertainty principle
2.Quantum transitions that result in the char-
acteristic sharp lines of the X-ray spectrum
always involve
1. electron energy levels that have the same
principal quantum number.
2. protons within the nucleus.
3. the inner electron shells.
4. neutrons within the nucleus.
5. emission of beta particles from the nu-
cleus.
3.What do the K, L, M symbols correspond
to?
1. ms - quantum numbers.
2. mj - quantum numbers.
3. ml` - quantum numbers.
4. n - quantum numbers.
5. l` - quantum numbers.
Explanation / Answer
1. 3. The Pauli exclusion principle 2. 3. the inner electron shells. 3. 4. n - quantum numbers Not sure if how I put that is confusing.
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