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The lightest and smallest atom is hydrogen. It has a single proton and a single electron. There are some other isotopes of hydrogen that have one or more neutrons. Although those isotopes are naturally occurring, they are rare and for most purposes, we can ignore their existence.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoHydrogen is the lightest atom. It contains one proton and one electron
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What is the symbol for the lightest atom?
Hydrogen is the lightest and most common atom in the universe. It has the symbol H and an atomic number of 1.
The lightest of an atom's main constituents?
An atom is composed of three main particles, the proton, electron and neutron. The electron is the lightest among the three.
Of the three particles that make up an atom which is the lightest?
The electron.
Where can the most mass be found in an atom?
Essentially all of the atom's mass is in the nucleus. In the lightest atom, that of hydrogen, it's about 99.95 percent. In the heaviest naturally occurring atom, that of Uranium238, it's about 99.979 percent.
What is the lightest subatomic particle of an atom?
electrons the smallest but weigh as much as protons neutrons weigh nothing ~Kay
Which atom is the lightest?
Hydrogen is the lightest element. The isotope protium is the lightest kind of hydrogen atom.
What atom is the lightest and the simplest atom?
hydrogen
What is the symbol for the lightest atom?
Hydrogen is the lightest and most common atom in the universe. It has the symbol H and an atomic number of 1.
Which is the lightest component of an atom?
electrons
What subatomic particles are the lightweights of the atom?
The lightest particle in the atom is the electron.
The lightest of an atom's main constituents?
An atom is composed of three main particles, the proton, electron and neutron. The electron is the lightest among the three.
What chemical symbol does lightest atom have?
Hydrogen is the lightest chemical element; the chemical symbol is H.
Which of the parts of an atom is the lightest part of the atom why?
Depends, but it is probably electron
Which subatomic particles has the lest mass?
In the atom the electron is the lightest.
Of the three particles that make up an atom which is the lightest?
The electron.
What subatomic particle has the less mass?
In the atom the electron is the lightest.
What subatomic particle Has the smallest relative mass?
In the atom the electron is the lightest.
