How many protons, electrons, and neutrons does an atom of iridium (ir) have

Iridium has 77 protons, 77 electrons, and 115 neutrons. You can figure out the protons/electrons from it's atomic number, 77. Because it's atomic mass is 192, subtacting the atomic number 77 from this gives you 115 neutrons!

Answer

the first one cells spend more time in prophase than any other phase, where DNA condenses to prepare for division. Prophase is the first phase in the cell cycle, which prepares everything and ensures that the division goes smoothly.

Explanation

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