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What happens to the atomic number of an atom when the number of neutrons in the nucleus of that atom increases? It increases. A neutral atom of aluminum has 14 neutrons and 13 protons.
What happens to the atomic number of an atom when the number of protons in the nucleus of that atom increases?
Protons carry a positive electrical charge and they alone determine the charge of the nucleus. Adding or removing protons from the nucleus changes the charge of the nucleus and changes that atom's atomic number.
What happens to an atomic number and mass number of a nucleus when it emits an electron changes a neutron to a proton?
Nuclei with high neutron-to-proton ratios decay by converting a neutron to a proton and an electron. The electron is emitted as a β particle, and the proton remains in the nucleus, causing an increase in the atomic number with no change in the mass number.
What happens when the atomic number increases?
As the atomic number increases along each row of the periodic table, the additional electrons go into the same outermost shell, causing the atomic radius to decrease due to the increasing nuclear charge.
What happens to the atomic number of an atom?
atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.
What happens to the atomic number and mass number when it emits electron?
The correct answer is Atomic number Increased by 1 and the mass number remains the same.
What happens to the mass number and the atomic number of an element when it undergoes beta decay?
In a β decay a neutron decays to give a proton and an electron, so the mass number is unchanged, but the atomic number increases by 1.
Why does the atomic radius increase as the atomic number increases?
This is because atomic number increases down a group, and thus there is an increased distance between the valence electrons and nucleus, or a greater atomic radius.
Why does the atomic radius increase as the atomic number increases in a group?
Down a group, the number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital. This results in a larger atomic radius. Ionic radius is the distance from the nucleus to the outer edge of the electron cloud of an ion.
What happens to the mass number and atomic number of an element?
The mass number is the combined number of protons and neutrons in a nucleus, so it's protons and neutrons, and it's symbolized by A. So A is the mass number, which is equal to the number of protons, that's the atomic number which we symbolized by Z, plus the number of neutrons.
