Nipun Gupta

i have a rechargeable battery (1.2v, 2000mAh) and a charger with output DC 1.5 550mAX4 In how much time will the cell be charged. Please give the formulas and calculations:confused:

why does sodium (2,8,1) is less reactive then potassium(2,8,8,1) although both need 1 electron and also Na will more attract an electron due to small size

can u tell if a compound is organic or inorganic by just knowing the molecular formula:confused: :confused:

is their any way to find out to compare the chemical reactivity of two element while only using the periodic table

what is antiparticle? Where do they actually exist