Atomic Orbital Theory

What is the charge of an electron?

• -1

• 0

• +1

What does it mean to say a particle is "quantized"?

• They are numbered

• They only exist as a whole, never fractional

• They can be divided into smaller parts

Which characteristic defines an atom as belonging to a particular element?

• atomic mass

• atomic number

• neutron count

• charge

If Nitrogen (N) is Z=7, how many protons does an atom of it have?

• 7

• not enough information

Why do electrons repel other electrons?

• They hate each other

• They have the same electrical charge

• They have opposite electrical charge

Which physicist claimed that electrons are quantized?

• Niels Bohr

• Louis de Broglie

• Werner Heisenberg

• Erwin Schrodinger

Who claimed that electrons act like a wave?

• Niels Bohr

• Louis de Broglie

• Werner Heisenberg

• Erwin Schrodinger

The claim that electrons act like a circular standing wave was made by...

• Niels Bohr

• Louis de Broglie

• Werner Heisenberg

• Erwin Schrodinger

Which scientist claimed that the location of a particle is uncertain and therefore, unknown?

• Niels Bohr

• Louis de Broglie

• Werner Heisenberg

• Erwin Schrodinger

What is an orbital?

• Chewing gum

• The path the sun takes around the moon

• A 3D area outside the nucleus where electrons are found

• The electron cloud