Often, but not always, atoms with an equal number of protons and neutrons in the nucleus are stable and not radioactive.
an equal number of protons and neutrons means a neutral atom
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Atomic number = number of protons + number of neutrons Mass number = number of protons + number of neutrons
The symbol is Ba. The number of neutrons equal the number of protons.
All elements have protons and neutrons within their nuclei. The protons are positively charged and the neutrons have no charge, they are only there to add to the size and mass of the atom. The protons are what attract the electron cloud surrounding the nucleus. You can determine the amount of protons and typically neutrons within an atom by the atomic number.
By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.
The number of protons
No. They will all have the same number of protons and electrons, but the number of neutrons will vary. This results in isotopes of lithium.
Atomic number = number of protons + number of neutrons Mass number = number of protons + number of neutrons
Mass number is about the neutrons and protons. The total of neutrons and protons.
The symbol is Ba. The number of neutrons equal the number of protons.
All elements have protons and neutrons within their nuclei. The protons are positively charged and the neutrons have no charge, they are only there to add to the size and mass of the atom. The protons are what attract the electron cloud surrounding the nucleus. You can determine the amount of protons and typically neutrons within an atom by the atomic number.
The mass number is the average atomic mass of all the isotopes that are found in nature.
Number of protons = Number of electrons = Atomic number Number of neutrons = Atomic number - Number of protons
Sum of protons and neutrons is the Mass number of the element. The number of protons is equal to the number of electrons. Neutrons and protons are sub atomic particles.
The mass number is the sum of protons + neutrons.
25 is the number of protons and neutrons added together. The atomic number of Mg is 12 which is the number of protons. So 25 - 12 = 13 neutrons.
The number of protons in uranium of any type is 92. The mass number only results in changes in the number of neutrons. So, the answer to the question is 92 protons.
7 protons 7 electrons 8 neutrons