Split the following ions into isoelectronic groups by noble gas: 02-, Sr2+, Ca2+, H-, V5+, l–, Ba2+, Na+, S2-, Al3+, La3+, Li+, As3–

How many atoms are there in 5.70 mol of mg

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons