Semester Chemistry Review

How are these isotopes different?

• Different atomic numbers

• Different number of protons

• Different number of neutrons

• Different number of electrons

Tags

NGSS.HS-PS1-8

What process is modeled by the equation?

• alpha decay

• beta decay

• fission

• fusion

Tags

NGSS.HS-PS1-8

What type of nuclear equation is this?

• fusion

• fission

• alpha

• beta

Tags

NGSS.HS-PS1-8

What is the Half life of this isotope?

• 5 seconds

• 10 seconds

• 15 seconds

• 20 seconds

Tags

NGSS.HS-PS1-8

Flame tests can be used to identify an element. Each element emits characteristic waves of light when it is heated in a flame. What describes how the light is produced?

• Protons in the ground state lose energy and give off light.

• Protons in the ground state gain energy and are emitted from the nucleus, giving off light.

• Electrons in the ground state lose energy and move to an excited state, giving off light.

• Electrons in the ground state gain energy, move to an excited state, and give off light when they return to the ground state.

Tags

NGSS.HS-PS4-3

The atomic number of aluminum is 13. What is the correct designation of the electron configuration of aluminum?

• 1s²1p⁶2s²2p¹

• 1s²2s²2p⁶3s³

• 1s²2s²2p⁶2d³

• 1s²2s²2p⁶3s²3p¹

Tags

NGSS.HS-PS1-1

What type of orbital does this image represent?

• S

• P

• D

• F

What type of orbital does this image represent?

• S

• P

• D

• F

Which area on this periodic table represents the S sublevel?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-1

The order of elements in the modern periodic table is based on an element's

• atomic number.

• name.

• chemical symbol.

• atomic mass.