Do metal atoms tend to gain or lose electrons?
The alkali and alkali-earth metals want to lose electrons. Alkali metals need to only lost one electron to have a full outer shell (8). Alkali-earth metals need to lose 2 electrons.
Transition metals are different, but remember that the outermost shell in a transition metal is NOT a d orbital. Take for example the electron configuration of the transition metal Cobalt.
The outer most shell is the 4s orbital and not the 3d orbital. Therefore, Cobalt "wants" to lose the 2 electrons that are in its outermost shell.
atoms gain and lose electrons, so they can have a full outer shell of 8 electrons (or two electrons if its the innermost shell) when atoms lose electrons it is called oxidation and when they gain electrons they are said to be reduced. OIL RIG is most commonly used to help remember that oxidation is loss and reduction is gain of electons. when atoms lose electrons they are left with a positive charge and when…
Ions are electrically charged particles formed when atoms lose or gain electrons. This loss or gain leaves a complete highest energy level, so the electronic structure of an ion is the same as that of a noble gas - such as a helium, neon or argon. Metal atoms and non-metal atoms go in opposite directions when they ionise: Metal atoms lose the electron, or electrons, in their highest energy level and become positively charged ions…