The α−particle carries two positive charges. Its mass is very nearly equal to that of ____________.
The α−particle carries two positive charges. Its mass is very nearly equal to that of ____________.
The correct option is B an atom of helium
The α−particle carries two positive charges. Its
mass is very nearly equal to that of an atom of helium.
A helium atom is an atom of the chemical element
helium. Helium is composed of two electrons bound by the electromagnetic force
to a nucleus containing two protons along with either one or two neutrons,
depending on the isotope, held together by the strong force.
One single helium atom is not a molecule, Oxygen is
described as a molecule as it is diatomic, meaning when oxygens on its own it
doesn't 'float about' as a single atom, it is two oxygen atoms bonded together,
making it a molecule. Nope, a helium atom is an atom. A molecule is a compound
of different atoms.
The α−particle carries two positive charges. Its mass is very nearly equal to that of an atom of helium.
A helium atom is an atom of the chemical element helium. Helium is composed of two electrons bound by the electromagnetic force to a nucleus containing two protons along with either one or two neutrons, depending on the isotope, held together by the strong force.
One single helium atom is not a molecule, Oxygen is described as a molecule as it is diatomic, meaning when oxygens on its own it doesn't 'float about' as a single atom, it is two oxygen atoms bonded together, making it a molecule. Nope, a helium atom is an atom. A molecule is a compound of different atoms.
