# What is the mass number of 9 protons and 9 neutrons? (2023)

## What is the mass of 9 protons?

Its atomic number is 9, while its atomic mass is 19 atomic mass units.

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What is the mass number of 9?

The Elements, sorted by Atomic Number
Atomic NumberSymbolAtomic Mass (amu, g/mol)
6C12.011
7N14.0067
8O15.9994
9F18.998403
76 more rows

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What element has 9 protons and 9 electrons?

A neutral atom of fluorine (F) has 9 electrons, 9 protons, and 10 neutrons.

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How do you find the mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

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What is known as mass number?

mass number, in nuclear physics, the sum of the numbers of protons and neutrons present in the nucleus of an atom.

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What is the mass of each proton and neutron?

Both protons and neutrons have a mass of 1, while electrons have almost no mass. The element hydrogen has the simplest atoms, each with just one proton and one electron.

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What is the mass of a proton and a neutron?

The mass of a proton is 1. 6726×10−24 g, or about 1836 times the mass of an electron. The proton carries a positive electrical charge, that is equal in magnitude to the charge of the electron but opposite in sign. Mass of a neutron is 1.

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What atom has 9 neutrons?

Oxygen atoms with 9 neutrons would have a mass number of 17 (8 p+ + 9 n0), meaning they would have a mass of about 17 amu. Oxygen atoms with 10 neutrons would have a mass number of 18 (8 p+ + 10 n0), meaning they would have a mass of about 18 amu.

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What atom consists of 9 protons 9 neutrons and 10 electrons?

Answer and Explanation: The given species has 9 protons. Thus, it is fluorine (F).

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What particle has 9 protons?

Atomic Structure

Fluorine as 9 protons and 10 neutrons in its nucleus giving it an Atomic Number of 9 and an atomic mass of 19.

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## What isotope has 9 neutrons?

Because protons and neutrons are roughly equal in mass, an isotope's number is equal to the sum of its protons and neutrons. Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.

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