Chemistry
The formula of an ion of an element A is A2+. Element A probably belongs to which group?
Related Questions
Name : A metal present in period 3, group 1 of the periodic table.
Give one word or a phrase for : Amount of energy released when an atom in the gaseous state accepts an electron to form an anion.
State the group and period of the element having three shells with three electrons in the valence shell.
The electron affinity of an element X is greater than that of element Y.
(a) How is the oxidising power of X likely to compare with that of Y?
(b) How is the electronegativity of X likely to compare with that of Y?
(c) State whether X is likely to be placed to the left or to the right of Y in the periodic table?