The mass number of fe2+ is 56. how many neutrons are there in a single fe2+ atom

There are 30 neutrons in a single Fe2+ atom.

Explanation:

The mass number is equal to the sum of the protons and the neutrons.

M = Z + N

Where M is the mass number, Z is the number of protons, and N is the number of neutrons.

Using the periodic table, we know that the atomic number of Fe is 26.

The atomic number is equal to the number of protons.

56 = 26 + N

N = 30

There are 30 neutrons in a single Fe2+ atom.

here's the link to your question!

explanation:

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !