What model replaced the shell diagram in understanding atoms?

• Quantum mechanical model

• Bohr model

• Dalton's model

• Thomson's model

What principle introduces uncertainty in the position and momentum of electrons?

• Heisenberg's uncertainty principle

• Pascal's principle

• Einstein's theory of relativity

• Newton's third law

How many electrons can occupy a single orbital according to the quantum mechanical model?

• 32

• 8

• 2

• 18

What does the 's' in s orbital stand for?

• Size

• Sharp

• Spin

• Shape

Which of the following is NOT a type of orbital?

• g orbital

• s orbital

• p orbital

• d orbital

What does the quantum number 'l' represent?

• Spin of the electron

• Orientation of the orbital

• Shape of the orbital

• Energy level

According to the quantum mechanical model, electrons are found in:

• Clouds of probability

• Fixed orbits

• Specific distances from the nucleus

• A singular location at a time

What law is the shell model primarily based on?

• Coulomb's Law

• Kepler's Law

• Hooke's Law

• Ohm's Law

Tags

NGSS.HS-PS2-4

What does the quantum mechanical model use to predict how atoms will interact?

• Observational data only

• Simple mathematical formulas

• Complex equations and computers

• Classical physics principles

What is the significance of electron spin in the quantum mechanical model?

• Determines the chemical properties of an atom

• Limits the number of electrons in an orbital to two

• Defines the color of the atom

• Controls the temperature of the atom