Question

How many neutrons are present in 58Fe26??​

Answer 1

Explanation:

For hydrogen, the atomic mass is 1 because there is one proton and no neutrons. For helium, it is 4: two protons and two neutrons. For most of the 16 lightest elements (up to oxygen) the number of neutrons is equal to the number of protons.

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2.1 Electrons, Protons, Neutrons, and Atoms.

Elementary Particle Charge Mass

Neutron 0 1

Electron −1 ~0

Answer 2

Explanation:

Given the nucleus of Iron: 56/ textupFe

26

Atomic number (Z) = 26

Mass number (A) = 56

Number of protons (Z) = 26

Number of neutrons (A-Z) = 56-26 = 30