Question

Atomic weight example​

Answer 1

Experimentally, the weight of Avogadro's number (NA = 6.023 × 1023) of carbon atoms, each containing six protons and six neutrons, equals 12.00000 g, where 12.00000 is the atomic weight.

Answer 2

Answer:

The most well-known form of plutonium, for example, has an atomic number of 94, since it has 94 protons, and with the 145 neutrons in its nucleus, an atomic weight of 239 (94 protons plus 145 neutrons).