Revision Chapter 1: Electrons In Atoms Question Preview (ID: 53911)


Revision Of Chapter 1 Section 2 And 3. TEACHERS: click here for quick copy question ID numbers.

How many electrons total can reside in p orbital level?
a) 2
b) 3
c) 6
d) 8

What is the maximum theoretical number of electrons related to the fifth principal energy level of an atom?
a) 2
b) 8
c) 18
d) 32

Using noble-gas notation, what is the ground-state electron configuration of Cd (atomic number 48)?
a) Kr4d104f2
b) Ar4s23d10
c) Kr5s24d10
d) Xe5s24d10

What is the element that has the ground-state electron configuration Xe6s24f145d6?
a) La
b) Ti
c) W
d) Os

What is the complete electron configuration of a scandium atom (atomic mass 21)?
a) 1s2 2s2 2p6 3s2 3p6 4s2 3d1
b) 1s2 2s2 2p7 3s2 3p7 4s2 3d1
c) 1s2 2s2 2p5 3s2 3p5 4s2 3d1
d) 1s22s12p73s13p74s23d1

What sublevel is not found in the quantitative description of the atom?
a) 2s
b) 3d
c) 4s
d) 2d

How many orbitals are there in the fourth principal energy level?
a) 1
b) 4
c) 9
d) 16

What predicts that all particles in motion have wave characteristics?
a) Bohr’s model of atom
b) The aufbau principle
c) The de Broglie equation
d) The Heisenberg uncertainty principle

What states that each electron occupies the lowest available energy orbit?
a) Hund’s rule
b) Aufbau principle
c) Pauli exclusion principle
d) Rutherford rule

If the wavelength of the infrared rays is 3.0 × 10-5 m .What is its frequency in (HZ)?
a) 1.0 ×10 to the power of -13
b) 1.0 ×10 to the power of -8
c) 1.0 ×10 to the power of -5
d) 1.0 ×10 to the power of 13

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