PC. 3.2 Ch. 9 & 10 Atomic Theory & EMS

A negative ion is known as a(n)

• neutral atom
• cation
• molecule
• anion

Emission of light from an atom occurs when an electron ____.

• remains in the same energy level
• absorbs energy from the environment
• drops to a lower energy level (ground state)

• jumps to a higher energy level

Tags

NGSS.HS-PS4-3

The atomic emission spectrum of a sodium atom on Earth compared with the emission spectrum of a sodium atom somewhere else in the universe would be ____.

• the same
• the same only in a vacuum
• different due to temperature variations
• different due to gravitational effects

What is the frequency of red light with a wavelength of 650. nm?

• 3.00 x E 14 Hz

• 5.00 E 14 Hz

• 4.615 E 14 Hz

• 6.25 E 14 Hz

Tags

NGSS.HS-PS4-1

What is the approximate energy of a photon having a frequency of 4 E -14 Hz?

• 2.65 x 10^-19 J
• 3.00 x 10^-19 J
• 5.50 x 10^-19 J
• 1.20 x 10^-19 J

Tags

NGSS.HS-PS4-1

Which subatomic particle plays the greatest part in determining the chemical properties of an element?

• Electron
• Photon
• Neutron
• Proton

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

John Dalton's model of the atom was remarkably similar to which other person's model?

• Democritus
• Erwin Schrödinger
• Niels Bohr
• Aristotle

Which substance(s) comprised Aristotle's philosophical idea about matter? Choose all that apply.

• Wind

• Earth

• Fire

• All

The idea that Matter is neither created nor destroyed during a chemical reaction, attributed to Lavoisier, is best described by:

• Law of Diminishing Returns
• Law of Thermodynamics
• Law of Chemical Equilibrium
• Law of Conservation of Mass

Tags

NGSS.HS-PS1-7

Pierre Gassendi made the study of atoms acceptable in the mid-1500s by saying:

• Atoms can be created and destroyed at will.
• Atoms are the fundamental building blocks of matter.
• Atoms are invisible and do not exist.
• Atoms are only found in living organisms.