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What happen to atomic number and mass number of nucleus when it emits electron?
Wiki User
∙ 7y ago
"Number" goes up by one, mass stays the same.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThey remain unchanged.
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When a radioactive isotope emits a its atomic number increases?
a beta particle. the nucleus is made of protons (+) and neutrons. but neutrons can transform into an electron and a proton. when that happens in the nucleus, the proton stays in the nucleus while the electron shoots out at incredibly high speeds. that high speed electron is called a beta particle. the proton that stays is added to the other protons to increase the atomic number
What happen to atomic number and mass number of nucleus when it emits alpha particle electron and proton?
It's been awhile for me, but this is how I remember it. It is not convenient for me to look it up right at the moment, so you may want to verify this. Emitting an alpha particle (2 proton 2 neutron), atomic number would decrease by 2 and atomic mass decreases by 4.Electron emission means a neutron turns into a proton and electron, but the electron shoots out. The atomic number increases by 1 and atomic mass stays the same. Proton emission, well it loses a proton. So the atomic number decreases and mass decreases.
What happens to an atom when they emit beta radiation?
nothing (_*_)When a nucleus emits a beta particle, it loses one of its neutrons and gains one proton. Hence, it's mass and atomic number remain the same but its charge and proton number is increased by +1.^Excerpts from above:"...nucleus...gains one proton...""...atomic number remain the same...."The mass number remains the same because the neutron decays into a proton with the release of a beta particle. However, since one proton is gained, the atomic number also increases by 1. It does not remain the same like the mass number. Since the atomic number increased (the nucleus gained a positively charged proton), the charge does increase by +1.Read more: What_happens_to_a_nucleus_when_it_emits_a_beta_particle
How are electrons held in an orbit around the nucleus?
While it is useful to visualize an Electron orbiting an atomic nucleus like a moon orbiting a planet. It is more realistic to think of the Electron as a standing wave (with a fixed number of wave crests and troughs) surrounding the nucleus. The electromagnetic force holds the Electron and nucleus together. The Electron holds a negative electrical charge and the nucleus a positive electrical charge and the two attract one another. Therefore for each positive charge present in the atomic nucleus (the Protons) there must be a balancing negative charge (the Electrons) present round the atom.
Which subatomic particle determines the properties of an element?
The number of protons in the atomic nucleus determines the properties of an element. Every element has its own unique number of protons, called its atomic number, which is displayed on the periodic table. The elements are arranged in order of increasing atomic number on the periodic table.
A(n) is described as a nucleus of protons and neutrons surrounded by an electron cloud.?
Atomic number is the equivalent of the number of protons in an atomic nucleus.
What is the relationship between atomic number proton number electron number neutron number and atomic mass?
The atomic number correlates to the number of protons found in the nucleus of an atom. The atomic number also dictates the number of electrons that orbit the nucleus if the atom in neutral. Finally the atomic mass is the number of protons and neutrons found in the nucleus. The atomic number equals the number of protons (p+) or electron (e-).
What is the atomic number of the nucleus?
The atomic number is the number of protons in a nucleus.
Atomic number is equal to?
no of the protons or the no of electron is equal to the atomic no denoted by the symbol Z
When a radioactive isotope emits a its atomic number increases?
a beta particle. the nucleus is made of protons (+) and neutrons. but neutrons can transform into an electron and a proton. when that happens in the nucleus, the proton stays in the nucleus while the electron shoots out at incredibly high speeds. that high speed electron is called a beta particle. the proton that stays is added to the other protons to increase the atomic number
Atomic number in the atomic nucleus?
The atomic number is equal to the number of the protons in the atomic nucleus.
What the atomic number of nucleus of atom?
what is the atomic number of the nucleus?
What happen to atomic number and mass number of nucleus when it emits alpha particle electron and proton?
It's been awhile for me, but this is how I remember it. It is not convenient for me to look it up right at the moment, so you may want to verify this. Emitting an alpha particle (2 proton 2 neutron), atomic number would decrease by 2 and atomic mass decreases by 4.Electron emission means a neutron turns into a proton and electron, but the electron shoots out. The atomic number increases by 1 and atomic mass stays the same. Proton emission, well it loses a proton. So the atomic number decreases and mass decreases.
What happen to atomic number and mass number of nucleus when it emits proton?
Both get decreased as At. no = No. of Protons & At. mass = No. of protons + No. of neutrons in the nucleus.
What is the atomic number in the nucleus of a atom of the element?
The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses in its electron shells). The atomic number is unique for each element and positions the element in the periodic table.
What determine an atoms size?
The atomic radius depends on the the number of electron shells, total negative charge, positive charge of the nucleus, atomic mass.
Is the electron cloud of an atom the isotope?
No.The cloud of electrons surround the atomic nucleus and, for each individual element, there are a different number of electrons in the cloud. This number of electrons is matched by the samenumber of protons in the atomic nucleus.However, the atomic nucleus also contains neutrons, and there is a variable number of neutrons in the nucleus. It is this variation in the number of neutrons that makes the isotopes of an element.
