Answer:
30 neutrons
Explanation:
A neutral iron atom contains 26 protons and 30 neutrons plus 26 electrons in four different shells around the nucleus. As with other transition metals, a variable number of electrons from iron's two outermost shells are available to combine with other elements.
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Answer:transverse- transfers energy perpendicular to the direction of the wave
Electromagnetic- dose not require a medium for transition
Mechanical - requires a medium for transmission
Longitudinal- transfers energy parallel to the direction of the wave
Explanation: just took the activity