Chem 1: Atomic Structure & Nuclear Chem Review

In the picture, what is the atomic number for Sodium?

• 11
• 22.9
• Na
• none of the above

What two particles are inside the nucleus of an atom?

• Protons and Neutrons
• Electrons and Protons
• Electrons and Neutrons
• all of them

Tags

NGSS.HS-PS1-8

Protons are?

• Positive
• Negative
• Neutral

Tags

NGSS.MS-PS1-1

Which one is not an example of a chemical reaction?

• Bubbles forming
• New odor
• Gass produced
• Breaking glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The Bohr model is used to demonstrate

• neutrons 
• electron energy levels
• proton energy levels

Tags

NGSS.HS-PS1-1

What is the correct chemical symbol for gold?

• Au
• Ag
• G
• AU

What would two different isotopes of an atom have in common?

• Number of neutrons 
• Number of protons
• Atomic weight 
• Atomic mass

What happens when the number of protons in an atom changes? 

• The number of electrons changes too 
• Usually nothing happens, unless the atom is radioactive 
• The atomic nucleus explodes
• It becomes a completely different atom, with different properties 

Tags

NGSS.HS-PS1-8

What is the daughter nuclide for this radioactive decay ?

• Silver-115 (Ag)

• Cadmium-115 (Cd)

• Palladium-115 (Pd)

• Not Listed

In what part of an atom can protons be found? 

• Inside the electrons
• Inside the neutrons 
• Inside the atomic nucleus 
•  Inside the electron shells

Tags

NGSS.MS-PS1-1