Option “A” is the crest of the wave because it’s the maximum value of upward displacement within a cycle.
Beta decay occurs when a neutron transforms into a proton, an electron(and an electron anti-neutrino) Even though there are less electrostatically-repelling protons in C 14 than in N 14 the extra neutrons make the nucleus less stable than that of N 14
Answer:
Iron's atomic number is 26
Explanation: