Question

How many neutrons does europium -151 have? What's is the isotopes mass number?

Answer 1

Europium-151 has 88 neutrons in its nucleus and a mass number of 151. The mass number is the sum of its protons and neutrons.

Step-by-step explanation:

Europium-151 has an atomic number of 63, which means it also has 63 protons in its nucleus since the atomic number is equal to the number of protons. To find the number of neutrons in europium-151, we subtract the atomic number from the isotope's mass number. Europium-151 has a mass number of 151, so it has 151 - 63 = 88 neutrons.

The mass number of an isotope represents the total number of protons and neutrons in the nucleus. For europium-151, the mass number is 151. This is made up of the 63 protons and 88 neutrons.

Answer 2

Europium or has the symbol of Eu contains 89 neutrons on it. And its Isotopes mass number is 150.9198502. According to research the naturally occurring Eu is consist of 2 isotopes. Eu 151 is considered as one of the most abundant in nature. Europium -155 is said to have a half-life of 4.76years. It produces 252 KeV decay energy.