0
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.
The electron is the smallest of these entities, being a subatomic particle with a mass much smaller than that of a neutron or an ion. Neutrons and ions are composed of multiple subatomic particles and have greater mass compared to electrons.
An electron is smallest by far. A proton and neutron have close to the same mass, around 1830 times as much as the mass of an electron.
Of those choices (atom, neutron, electron, or ion), the electron is the smallest.
Add your answer:
Earn +20 pts
How does a hydrogen ion change into an atom?
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.
What is formed when an atom gains or loses an electron?
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).
Why is the chloride ion larger than the chloride atom?
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 electron is added to unipositive ion we get?
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.
What type of atom is formed when an electron is gained or lost by a neutral 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.
Which is smallest in size an ion electron neutron or atom?
electron is the smallest
A hydrogen atom that does not contain a neutron hydrogen ions can can be thought of as?
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.
Which has a linear size or radius closest to the radius of a neutron star?
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
Which of these is not a subatomic particle proton ion neutron or electron?
Ion.
Smallest is a atom or ion?
atom
How can a charged atom attract a neutron?
A neutron has no charge, so a charged atom (ion) cannot attract a neutron.
An atom that gains an electron gains what type of ion?
an atom that gains an electron becomes a negative ion, called an anion.
How does a hydrogen ion change into an atom?
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.
How does sodium atom form an ion?
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.
What is formed when an atom gains or loses an electron?
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?
When an atom loses an electron, it loses a negative charge. This results in the atom becoming a positively charged ion.
What subatomic particles are closest in mass proton and neutron neutron and electron proton and electron electron and ion?
Mg+2 and Br-1
