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1 year ago

What is the atomic number for an element whose mass number is 115, which contains 66 neutrons per atom?

Physics

1 answer:

slava [35]1 year ago

5 0

The atomic number for an element whose mass number is 115, which contains 66 neutrons per atom is: 49

The formula and procedure we will use to solve this problem is:

number of protons = mass number - number of neutrons
atomic number = number of protons

Information about the problem:

mass number = 115
number of neutrons = 66
atomic number =?

Applying the number of protons formula we get:

number of protons = mass number - number of neutrons

number of protons = 115 - 66

number of protons = 49

Applying the atomic number formula we get:

atomic number =number of protons

atomic number = 49

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

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