A student is given a sample of pure gaseous element in a spherical container.The student measures the physical properties of the container and determines that it is 0.409 M in diameter and the gas inside it has a mass of 51.10 g.

A.Determine the identity of the gaseous sample.show all your working,with explanation of how you arrived at the answer.

B. Give both the complete (full) electron configuration and the noble gas core abbreviation of the gaseous element in this problem.

C.  Use Lewis dot symbols to show the gas in this problem would form a binary ionic compound with barium remember to:

.show how electrons are transferred between atoms of the gas and barium.

.show ions that are created after transfer of electrons.

give the charge on each ion.

.Give the noble gas core that each ion is isoelectronic with.

.Give the name of each ion.

.Give the formula for the binary ionic compound and name the binary ionic compound.