Exploring Electron Configurations in Modern Atomic Theory

What is the main reason for developing electron configurations?

• To replace the periodic table

• To eliminate the need for quantum numbers

• To provide a more accurate representation of electrons

• To simplify chemical reactions

What do the larger numbers in front of electron configurations represent?

• The number of protons

• The atomic mass

• The energy level of electrons

• The number of neutrons

Which block of the periodic table can hold a maximum of 10 electrons?

• F block

• D block

• P block

• S block

How many electrons can the F block hold?

• 10

• 14

• 6

• 2

What is the atomic number of tungsten?

• 76

• 78

• 74

• 72

According to the Aufbau principle, which sublevel is filled after 4s?

• 4d

• 5s

• 4p

• 3d

What is the condensed electron configuration for tungsten starting with the noble gas?

• [Ne] 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d4

• [Ar] 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d4

• [Xe] 6s2 4f14 5d4

• [Kr] 5s2 4d10 5p6 6s2 4f14 5d4

Which of the following elements is an exception to the Aufbau principle?

• Helium

• Carbon

• Chromium

• Oxygen

What is the purpose of using condensed electron configurations?

• To eliminate the need for quantum numbers

• To simplify the representation of electron configurations

• To show the exact position of each electron

• To replace the periodic table

Which noble gas is used in the condensed electron configuration for tungsten?

• Xenon

• Krypton

• Argon

• Neon