After the discovery of isotopes, scientists were able to conclude that? O all atoms of a given element have the same mass but may have different numbers of protons
O all atoms of a given element have the same number of protons but may have different masses
Od
all atoms of a given element are identical
all atoms of a given element may have different masses and different numbers of protons

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar.question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call