Admission test for the degree course in medicine and surgery 2011-2012

Domanda 67 di 80

One group of elements in the Periodic Table contains, in descending order, boron, aluminium, gallium, indium and thallium. Which of the following are correct about these elements? 1 Indium forms the oxide In2O3 2 Boron is the least reactive element in the group 3 Gallium forms the sulphate GaSO4