An atom contain protons, neutrons and electrons.
The ion has a smaller diameter.
A positive ion is generally smaller in size than the neutral form from which it forms. This is because when an atom loses an electron to become a positive ion, the remaining electrons experience a stronger attraction to the nucleus, leading to a more compact arrangement.
An atom is smaller.
The central atom in BCl3 is boron, which has only three valence electrons. Since it forms three bonds with the chlorine atoms, the hybridization of the central boron atom is sp2.
The central atom in NH2Cl has sp3 hybridization. The nitrogen atom forms three sigma bonds with two hydrogen atoms and one chlorine atom, requiring the use of three atomic orbitals to form the hybrid orbitals.
The neutron is a part of the atom, therefore it is smaller.
The chlorine atom becomes an ion with a larger radius when it forms an ionic bond with sodium. This is because it gains an electron and becomes a negatively charged ion, causing the electron cloud to expand.
The Universe was never smaller than an atom.
There are exactly three electron pairs attached to the Boron atom, each one of them bonded to a chlorine atom as well.
smaller
The nucleus forms the centre of the atom. The protons and neutrons are found in the nucleus of the atom.
A metal atom is smaller than the cation formed from it, because the electron(s) lost from a metal atom to form its cations are from the outermost electron shell or energy level of the atom. These electrons increase the size of the atom compared with the cation.