Confidence votes 25. The groups in the periodic table tell you what each element within them will react with, the number of valance electrons the element has, and what family it is in. (Ex/ everything in group twelve will react with something that will let it lose two electrons.
Abdullah, Salman and Muqrin are all sons of the founder of modern Saudi Arabia, King Abdulaziz, usually referred to as Ibn Saud, who died in 1953. King Salman called on the royal family's Allegiance Council to recognise Muqrin as his heir.
He was then appointed as Minister of Defence. He was also named the Crown Prince in 2012 following the death of his brother Nayef bin Abdulaziz Al Saud. Salman was crowned as the new King of Saudi Arabia on 23 January 2015 following the death of his half-brother, King Abdullah.