What kind of reaction happens when two compounds switch elements? Apex

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

What are the chemical names of these compounds? ke: mg3n2: reset next

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays