The electron has the least mass of the three mentioned. That's why the valance electrons are the determining factor in most reactions. The proton closely follows the neutron because they are exactly the same except for charge. This leaves the the electron as the lightest sub-atomic particle.
A hydrogen ion can change into an atom by gaining an electron. When a hydrogen ion, which is essentially a hydrogen atom that has lost its electron, gains an electron back, it will become a neutral hydrogen atom.
An atom forms an ion when it gains or loses an electron. If an atom gains an electron, it becomes a negatively charged ion (anion). If an atom loses an electron, it becomes a positively charged ion (cation).
The chloride ion is larger than the chloride atom because when an atom gains an electron to become an ion, it experiences an increase in electron-electron repulsion which causes the electron cloud to expand. This expansion leads to the ion being larger in size compared to the neutral atom.
When an electron is added to a unipositive ion, the resulting atom gains a negative charge and becomes a neutral atom. The electron neutralizes the positive charge of the ion, balancing the overall charge of the atom.
When an electron is gained, the atom becomes a negatively charged ion called an anion. When an electron is lost, the atom becomes a positively charged ion called a cation.
electron is the smallest
A hydrogen atom that does not contain a neutron is called a hydrogen ion or a proton. This ion is represented by the symbol H+. It consists of a single proton and an electron.
Br is the atom with the smallest. K+ is the ion with the smallest radius. In general, the shape with the smallest radius has the smallest diameter
Ion.
A neutron has no charge, so a charged atom (ion) cannot attract a neutron.
atom
an atom that gains an electron becomes a negative ion, called an anion.
A hydrogen ion can change into an atom by gaining an electron. When a hydrogen ion, which is essentially a hydrogen atom that has lost its electron, gains an electron back, it will become a neutral hydrogen atom.
When a sodium atom forms an ion, it loses one electron from its outer shell. This loss of an electron leaves the sodium atom with a positive charge, as it now has one more proton than electrons. This results in the formation of a sodium ion, specifically a sodium cation with a charge of +1.
An atom forms an ion when it gains or loses an electron. If an atom gains an electron, it becomes a negatively charged ion (anion). If an atom loses an electron, it becomes a positively charged ion (cation).
When an atom loses an electron, it loses a negative charge. This results in the atom becoming a positively charged ion.
Mg+2 and Br-1