How many protons neutrons and electrons does neon have? neon atomic number is 10
The Correct Answer and Explanation is:
Neon has 10 protons, 10 electrons, and 10 neutrons in its most stable isotope, neon-20.
Explanation:
- Protons:
The number of protons in an element determines its atomic number. For neon, the atomic number is 10, meaning it has 10 protons in its nucleus. - Electrons:
In a neutral atom, the number of electrons is equal to the number of protons, to balance the positive charge of the protons. Since neon is neutral, it will also have 10 electrons orbiting its nucleus. - Neutrons:
The number of neutrons is determined by subtracting the atomic number from the atomic mass number. Neon-20, the most common isotope, has an atomic mass number of 20. So, the number of neutrons in neon-20 is calculated as: Neutrons=Atomic mass number−Atomic number=20−10=10\text{Neutrons} = \text{Atomic mass number} – \text{Atomic number} = 20 – 10 = 10Neutrons=Atomic mass number−Atomic number=20−10=10 Therefore, neon-20 has 10 neutrons.
Other Isotopes:
Neon exists in several isotopes, such as neon-21 and neon-22. These isotopes have the same number of protons and electrons (10), but they differ in the number of neutrons:
- Neon-21 has 11 neutrons (20 – 10 = 11).
- Neon-22 has 12 neutrons (22 – 10 = 12).
However, the most abundant isotope of neon is neon-20, which has 10 neutrons.
Thus, for the most common form of neon, it has 10 protons, 10 electrons, and 10 neutrons.
