Exclusion Principle: What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?
A. 5
B. 11
C. 14
D. 20
Answer: C
You might also like to view...
Which of these events is NOT possible?
A) low-mass stars swelling up to produce planetary nebulae B) red giants exploding as Type II supernovae C) close binary stars producing recurrent novae explosions D) white dwarfs and companion stars producing recurrent Type I supernova events E) a white dwarf being found in the center of a planetary nebula
Leptons are built out of quarks
Indicate whether the statement is true or false
What happens when the air is saturated?
A) The condensation rate equals the evaporation rate. B) The air is at its water vapor capacity. C) Relative humidity is 100%. D) The air temperature equals the dew point temperature. E) all of the above
A spring-powered dart gun is un-stretched and has a spring constant 150 N/m. The spring is compressed by 8.00 cm and a 5.00 gram projectile is placed in the gun. The maximum height of the projectile when it is shot at an angle of 30.0 degrees above the horizontal from the gun is
A. 5.03 m. B. 4.24 m. C. 3.90 m. D. 3.20 m. E. 2.45 m.