Question

3 multiple choice 1 point how many atomic mass units (amu) do protons and neutrons contribute individually? 2 1 4 0 clear my selection

Explanation:

In atomic structure, a proton and a neutron each contribute approximately 1 atomic mass unit (AMU). Electrons have a negligible mass (about 0 AMU). So the correct option is the one with 1.

Answer:

B. 1 (assuming the second option is labeled B, as the options are 2, 1, 4, 0 in order. If the numbering of options is different, adjust the label, but the value is 1)