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What is the atomicic mass number equal to?
It looks like you have combined two concepts. The number of protons in an atom is the atomic number. The sum of the protons and the neutrons in an atom is the mass number. There is no such thing as an atomic mass number.
Do protons have the same atomic number?
Yes, in their natural state, the proton and electron number are the same, and thus the same as the atomic number.
The number 0 is not an element of the set of natural numbers true or false?
True. Zero is in the set of whole numbers, integers, rational numbers and real numbers but not natural numbers. Natural numbers are often referred to as the "counting numbers" or how you learned to count. When we are teaching little children numbers, we never start with zero or negative numbers - just 1, 2, 3...
Is the atomic number and the atomic weight the same?
No, the atomic number is the number of protons and electrons in a given element. The atomic weight is the weighted average of the isotopes in a natural environment.
Are the substances from number 12 isotopes why?
Carbon-12 is a natural and stable isotope of carbon.
