Assume that all samples listed below have the same pressure and temperature. which would have the greatest volume? a.1 gram of o2 b. all have the same volume c.1 gram of ar d.1 gram of h2 e. not enough information

1 gram of .

Explanation: Avogadro's Law: This law states that volume is directly proportional to the number of moles of the gas at constant pressure and temperature.

  (At constant temperature and pressure)  

where,

= initial volume of gas

= final volume of gas

= initial number of moles

= final number of moles

a) 1 gram of

c) 1 gram of Ar

d) 1 gram of

Thus the one having highest number of moles will have highest volume which is for 1 gram of .

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a