A sample of unknown element X contains the following isotopes:
80% of 64X, 15% of “x, and 5% of x. What is the average
atomic mass of element X?
66

Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.