What is the atomic number for an element whose mass number is 115, which contains 66 neutrons per atom?
1 answer:
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
<h3>What is an atom?</h3>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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