Beryllium chloride is a nonpolar molecule. The shape of BeCl2 is linear, with the central beryllium bonded on either side to a chlorine atom. The electronegativities of the chlorine atoms therefore cancel, leaving a nonpolar molecule.
Beryllium chloride is an example of an electron-deficient molecule because the beryllium atom only shares a total of four electrons, whereas atoms in most covalent molecules share eight. Normally, atoms such as beryllium located in the first or second groups on the periodic table form ionic bonds, which allows them to reach a noble gas configuration without sharing electrons. However, beryllium is significantly more electronegative than most atoms in these groups, which is why it forms covalent bonds.Learn More
Halogens include the elements chlorine, bromine and iodine, which form Group 7 in the periodic table of elements. Halogens vary in size, weight and other physical characteristics, but share several commonalities. All halogens are diatomic, which means they appear as molecules and have pairs of atoms.Full Answer >
There are three primary components inside an atom: neutrons, electrons and protons. The neutrons have no charge, while the protons have a positive charge and electrons have a negative charge. The neutrons and protons exist in a dense center area called the nuclei, while the electrons exist in another space, called orbitals, around the nuclei.Full Answer >
Covalent bonding describes the process where two atoms form a bond by sharing one or more electrons in order to fill up their outer orbital and become more stable. Covalent bonding typically occurs between two non-metals, which are mostly located on the right side of the periodic table.Full Answer >
Chemical properties of radium are its high reactivity and that it continuously breaks down and changes into other elements. Most radium isotopes, or atoms that have a different number of neutrons than the normal radium atom, are unstable and radioactive.Full Answer >