Unit 2: Atomic Structure Test Review

Which subatomic particle has a positive (+) charge?

• Neutron
• Proton
• Electron

Which subatomic particle has a negative (-) charge?

• Proton
• Electron
• Neutron

Which subatomic particle has a neutral or no charge?

• Proton
• Electron
• Neutron

The subatomic particles in green are...

• Protons
• Neutrons
• Electrons

An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 protons

• 40 protons

• 22 protons

• 21.9 protons

Tags

NGSS.MS-PS1-1

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 neutrons

• 40 neutrons

• 22 neutrons

• 21.9 neutrons

Tags

NGSS.MS-PS1-1

Look at this picture of Argon off the periodic table. Which of the following is true for this element when it is neutral?

• 18 electrons

• 40 electrons

• 22 electrons

• 21.9 electrons

Tags

NGSS.MS-PS1-1

When you two atoms with different masses, Carbon-12 and Carbon-13 for example, what type of atom do you have?

• Neutral atom

• Ion

• Isotope

Tags

NGSS.HS-PS1-8

When you two isotopes of an atom, Carbon-12 and Carbon-13 for example, what has changed in the atomic structure?

• Number of protons

• Number of neutrons

• Number of electrons

Tags

NGSS.MS-PS1-1