0
The combined number of protons and neutrons is known as the mass number of an atom. It can be used to calculate the Atomic Mass by adding the total number of protons and neutrons in the nucleus of an atom.
When you add the number of protons and number of neutrons, mostly the answer is the atomic mass.
The total number of proton plus the total number of neutrons equals the atomic mass of the element.
Add your answer:
Earn +20 pts
What element has 9 electrons 9 protons and 10 neutrons?
The element is Neon and the isotope is 10Ne19
How many protons neutrons and electrons are in a neutral atom of neon if its atomic number is 10 and its mass number is 22?
A neutral atom of neon with atomic number 10 has 10 protons and 10 electrons. The mass number of 22 indicates the total number of protons and neutrons combined. Since the atomic number is 10, the number of neutrons is 22 - 10 = 12.
How many protons does an atom with the atomic number 50 and mass number of 125 contain?
An atom with atomic number 50 contains 50 protons. The mass number of 125 indicates the total number of protons and neutrons combined, so subtracting the number of protons (50) from the mass number gives 75 neutrons.
Is the mass number the number of protons and neutrons?
No, The atomic mass is the number of protons plus the number of neutrons (the mass of the atom's nucleus). Note that the atomic mass is therefore different in cases where there are different isotopes of the element (because the nucleus will have a different number of neutrons for each isotope). The atomic number is the number of protons (or electrons in the atom's neutral state).
The mass number of an atom indicates the number of what?
The mass number of an atom indicates the total number of protons and neutrons in the atom's nucleus.
What is the answer to combined number of protons and neutrons in a nucleus?
Mass number
The number of protons and neutrons in an atom?
Depends on the atom. The atomic number will give you the number of protons. The atomic weight will give you approximately the number of protons and neutrons combined.
What is the mass number of an isotopes that has 5 protons 6 neutrons and selectrons?
The atomic number is the number of protons. The atomic mass number is the the sum of the numbers of neutrons and protons combined, in this instance, 11.
What can you find with the atomic number and mass number?
atomic number is the number of protons in the atom. mass number is protons and neutrons combined.
What number represents the number of protons in an atom?
Protons are represented by the atomic number of an element. The number of protons is also the number of electrons. The number of protons is also represented in re Atomic Mass, which is the number of protons and the number of neutrons combined.
Has 114 neutrons within its nucleus?
Osmium, if you take the Atomic Mass (190.2) and subtract the Atomic number (76), you get the result of 114, this is the number of protons, not the protons and neutrons combined.
The atomic mass of an atom is determined by the combined masses of its what?
The atomic mass of an atom is determined by the combined masses of its protons, neutrons, and electrons. While electrons contribute very little to the atomic mass, the protons and neutrons, found in the nucleus, account for the majority of an atom's mass.
What element has 9 electrons 9 protons and 10 neutrons?
The element is Neon and the isotope is 10Ne19
If beryllium has an atomic number of 4 and an atomic mass of approximately how many neutrons does beryllium atom have?
Since the mass number is protons plus neutrons, it would have 5 neutrons.
How many protons neutrons and electrons are in a neutral atom of neon if its atomic number is 10 and its mass number is 22?
A neutral atom of neon with atomic number 10 has 10 protons and 10 electrons. The mass number of 22 indicates the total number of protons and neutrons combined. Since the atomic number is 10, the number of neutrons is 22 - 10 = 12.
Mass number of 19?
The mass number of an atom is the total number of protons and neutrons in its nucleus. For an atom with a mass number of 19, it would have 19 total protons and neutrons combined. This atom could be potassium-40 (19 protons and 21 neutrons) or calcium-40 (20 protons and 20 neutrons), for example.
How is the mass number determine?
the mass number is determined on the number of protons and neutrons in the nucleus of the atom.
