An electron source is a bond or a lone pair of electrons. It is either a p bond or a lone pair on an atom of relatively high electron density in a molecule or ion, or a bond that must break during a reaction. An electron sink is an atom on a molecule or ion that can accept a new bond or lone pair of electrons.
What Military Threat Does North Korea Pose? It is impossible to say whether the recent threats from North Korea constitute a clear and immediate danger or whether the strong threats are just bluster in order to extract food aid and technical assistance from the international community.
South Korea: North has created small nuclear warhead. A South Korean official says his government believes North Korea has made a warhead that's small enough to fit onto a medium-range ballistic missile. CNN's Paula Hancocks reports. North Korea Tensions (15 Videos) South Korea: North has created small nuclear warhead. 1  A South Korean official says his government believes North Korea has made a warhead that's small enough to fit onto a medium-range ballistic missile. CNN's Paula Hancocks reports.