The two notations that represent isotopes of the same element is the one that represented in option 1
The lower number is the number of protons while the upper number is the atomic weight
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The correct answer for this question is this one: "<span>In transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change</span>. "
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Answer:
it's the electron cloud model
we can do soo by noticing any colour change, or by the formation of an insoluble precipitate or by the evolution of a gas.
