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Answer: Mass number A = Z + N.
302
Gamma rays are:
Answer: Gamma rays are high-energy photons from nuclear transitions.
Answer: \'Abundant\' means existing in large quantities, so \'plentiful\' is the correct synonym.
Answer: lambda = h/p = h/mv, wave-particle duality.
Answer: N = N0 e^(-lambda t), an exponential decay.
Answer: Fission splits heavy nuclei into lighter fragments.
Answer: Alpha particles are helium nuclei with charge +2e.
Answer: Fusion needs ~10^7 K to overcome electrostatic repulsion.
Answer: Einstein used photon theory to explain photoelectric effect.
Answer: \'Ephemeral\' means lasting for a very short time, so \'fleeting\' is the correct synonym.
Answer: \'Pragmatic\' means dealing with things sensibly and realistically, so \'practical\' is the correct synonym.
Answer: E = h nu, where h is Planck\'s constant.
Answer: \'Benevolent\' means well-meaning and kindly, so \'kind\' is the correct synonym.
Answer: \'Resilient\' means able to recover quickly from difficulties, so \'strong\' is the correct synonym.
Answer: Adiabatic: no heat exchange with surroundings.
Answer: Work function is minimum energy to eject surface electron.
Answer: Average KE = 3/2 kT, proportional to absolute temperature.
Answer: Half-life is when half the radioactive nuclei decay.
319
E = mc2 shows:
Answer: Mass can be converted to energy and vice versa.
Answer: Bohr\'s model explained the hydrogen line spectrum.