Oxygen Evolution on Earth

What is the most naturally abundant oxygen isotope on Earth?

• Oxygen 15

• Oxygen 18

• Oxygen 16

• Oxygen 17

What is the specific notation used to indicate the number of protons plus neutrons in an isotope?

• Proton notation

• Atomic notation

• Neutron notation

• Isotopic notation

What is the second most abundant gas in the atmosphere?

• Argon

• Nitrogen

• Carbon Dioxide

• Oxygen

What is the atomic mass of the most common oxygen isotope?

• 16

• 18

• 20

• 14

What is the main component of water vapor in the atmosphere?

• Hydrogen

• Oxygen

• Nitrogen

• Carbon

Tags

NGSS.HS-ESS2-5

Least abundant stable isotope of oxygen. Used in paleoclimatology to study ancient climates by analyzing the isotopic composition of ice cores, fossils, and sedimentary rocks.

• 16O

  (oxygen-16)

• 17O

  (oxygen-17)

• 18O

  (oxygen-18)

• 19O

  (oxygen-19)

Stable isotope of oxygen used un geochemistry to study the cycling of water and other materials in the environment. Its isotopic composition is used to determine the temperature and composition of ancient oceans and meteorites.

• 16O

  (oxygen-16)

• 17O

  (oxygen-17)

• 18O

  (oxygen-18)

• 19O

  (oxygen-19)

Tags

NGSS.HS-ESS2-5

Organize these options into the right categories:

Groups:

(a) Oxygen-16 (16O)

,

(b) Oxygen-17 (17O)

,

(c) Oxygen-18 (18O)

• Used in medical treatments

• When it evaporates, it is lighter than the other two

• Shellfish use this isotope to build their shells

• The most rare isotope

• Very abundant in glaciers

• 8 protons and 8 neutrons

• 8 protons and 9 neutrons

• 8 protons and 10 neutrons

• Used to determine the temperature and composition of ancient oceans and meteorites

Tags

NGSS.HS-PS1-8

What is one of the earliest oxygen-

producing organisms on Earth?

• Dinosaurs

• Cyanobacteria

• Mammals

• Reptiles

Tags

NGSS.MS-LS4-1

What did the reaction between oxygen

and iron in the oceans form?

• Calcium Carbonate Deposits

• Quartz Deposits

• Irion Oxide Deposits

• Sulfur Deposits