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Would you use atomic number or mass number or both to obtain the number of particles in an atom?
Wiki User
∙ 13y ago
atomic number is the total number of protons OR electrons in an atom. mass number is the total sum of number of protons and neutrons.
atomic number subtracted from mass number gives the number of neutrons in an atom.
Mass number - atomic number = number of neutrons.
Wiki User
∙ 13y ago
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If the number of charged and uncharged particles in the center of an atom are 7 and 8 respectively.What is the mass number of the atom?
The charged particles would be protons (+) and would have a mass of 7 ( which would also tell you its atomic number, making this element Nitrogen). If the uncharged particles are eight in number and like protons have a value of one, 7 + 8 = 15 for atomic mass. Since the actual atomic mass of N is 14.007, the difference in mass tells us that we are talking about an isotope of N.
Is raduim decays to bismuth how many alpha beta particles are emitted?
Atomic number of radium is 88 and that of bismuth is 83. So atomic number is to be reduced by 5. But as alpha is emitted atomic number reduces by 2. So a beta decay is needed which would increase the atomic number by 1. So 3 alpha decay and one beta decay would make radium into bismuth
To find the number of neutrons in an atom you would subtract what?
You would subtract the atomic number from the mass number.
What is the atomic number of 30Ar?
The atomic number of Argon is 18. So 30 of them the Atomic Number would be 540.
What two elements make up the atomic number?
All the elements have an atomic number. The atomic number is the number of protons found in the atom of a certain element. And to equalize themselves the atoms will usually have the same amount of electrons as protons so electrons also equal the atomic number. The atomic number is the number on the top of the box on the periodic table for each element. You must have been asking what two subatomic particles make up the atomic number. In that case it would be the proton and the electron because the neutron is so mall that chemist's usually nullify it.
What happend to the atomic number of an element which emits alpha particle and two beta particle?
THe atomic number would decrease by 2 as alpha particle comes out. But for two beta particles the atomic number would increase by 2. So the atomic number remains unchanged due to emission of one alpha followed by 2 beta particles.
If the number of charged and uncharged particles in the center of an atom are 7 and 8 respectively.What is the mass number of the atom?
The charged particles would be protons (+) and would have a mass of 7 ( which would also tell you its atomic number, making this element Nitrogen). If the uncharged particles are eight in number and like protons have a value of one, 7 + 8 = 15 for atomic mass. Since the actual atomic mass of N is 14.007, the difference in mass tells us that we are talking about an isotope of N.
What change in atomic number occurs when a nucleus emits an alpha particles?
An alpha particle has 2 protons and 2 neutrons. This would make the atomic number decrease by 2 and the Atomic Mass will decrease by 4.
Is raduim decays to bismuth how many alpha beta particles are emitted?
Atomic number of radium is 88 and that of bismuth is 83. So atomic number is to be reduced by 5. But as alpha is emitted atomic number reduces by 2. So a beta decay is needed which would increase the atomic number by 1. So 3 alpha decay and one beta decay would make radium into bismuth
Is 40.08 the atomic number?
No. Atomic number is always a whole number. This would be the atomic mass.
To find the number of neutrons in an atom you would subtract what?
You would subtract the atomic number from the mass number.
What is the atomic number of 30Ar?
The atomic number of Argon is 18. So 30 of them the Atomic Number would be 540.
What two elements make up the atomic number?
All the elements have an atomic number. The atomic number is the number of protons found in the atom of a certain element. And to equalize themselves the atoms will usually have the same amount of electrons as protons so electrons also equal the atomic number. The atomic number is the number on the top of the box on the periodic table for each element. You must have been asking what two subatomic particles make up the atomic number. In that case it would be the proton and the electron because the neutron is so mall that chemist's usually nullify it.
What would happen to a nucleus if the strong force was absent?
the particles would all become de-localised, and no elements would exist, just sub-atomic particles.
What is the combined weight of all the particles in an atomic nucleus?
That depends entirely on which element it is. for instance, the nucleus of a helium atom would weigh more than the nucleus of a hydrogen atom.
How would you describe the atomic number?
Atomic number is about protons. It symbolises the protons an atom has.
Where would you find the atomic number of an element on a periodic table?
The top left number is the atomic number
