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To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.

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Daija Kreiger

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An atom of boron has 5 protons and 6 neutrons what is the mass number?

The mass number of an atom is the sum of the number of protons and neutrons in its nucleus. In this case, with 5 protons and 6 neutrons, the mass number of the boron atom would be 5 + 6 = 11.


What is the number of an atom with 5 protons and 7 neutrons?

To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.


What is the mass number of a carbon atom with 5 neutrons?

Carbon's atomic number is 6, therefore it has 6 protons in its atoms. Mass number is the sum of protons and neutrons in the nucleus, which is 6 + 5 = 11.


An atom has 14 protons and 13 neutrons what it its atomic mass?

The atomic mass is the sum of the number of protons and neutrons in an atom. In this case, the atomic mass would be 14 (protons) + 13 (neutrons) = 27.


An atom of boron (B) has 5 protons and 6 neutrons. What is its mass number?

The mass number of an atom is the total number of protons and neutrons in its nucleus. Therefore, the mass number of boron with 5 protons and 6 neutrons is 11.


What is the atomic mass of an atom with 5 electrons?

you can't tell the atomic mass of an atom if either the number of protons or neutrons is missing. But Boron with 5 protons and 6 neutrons has and atomic mass of 11.


What is the atomic number of an atom that has a mass of 9 and 5 neutrons?

The mass is protons + neutrons. So, if the mass is 9 and it has 5 neutrons, then there must be FOUR (4) protons. This would be the element beryllium (Be).


If a neutral atom has a mass of 12 amu and an atomic number of 5 determine the number of protons neutrons and electrons in the atom.?

Protons: 5 Neutrons: 7 Electrons: 5


What is the mass number if an atom has 5 protons 5 neutrons and 5 electrons?

10


What is the mass number of the isotope of boron possessing 6 neutrons?

The mass number is the sum of protons and neutrons in an atom. Boron typically has 5 protons, so if it possesses 6 neutrons, the mass number would be 11 (5 protons + 6 neutrons).


How many protons and neutrons are there in an atom of 5B11?

In an atom of ^11B5, there are 5 protons and 6 neutrons. This is because the atomic number (5) specifies the number of protons, and the atomic mass (11) minus the atomic number gives the number of neutrons.


What is the atom's mass number of an isotope that has an atom number of 5 and includes 6 neutrons?

The Atomic Mass is, basically, the sum of the protons (the "atomic number"), and the number of neutrons.