The products and reactants weigh the same since u have to balance out the equation to have an equal number of molecules on bothsides
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Isotopic notation of phosphorus-29 is
Explanation:
- Isotopes are atoms with equal number of protons but different number of neutrons at its nucleus.
- The isotopic notation for any element can be written as where X represents the chemical symbol ,A represents mass number and Z represents atomic number
- The atomic number for phosphorus is 15
- Isotope's mass number for phosphorus-29 is 29
- The chemical symbol for phosphorus is P
- Hence Isotopic notation is
- Number of neutrons = 29-15 =14
- Number of protons=atomic number =15
Answer:
Observations of the sky allowed explorers to mark the passage of time both in hours and through the months of the year. Early astronomers also realized that the night sky does not look the same from different places on the Earth.