1) Thomson model of atom is like a ? a) negative sphere b) positive sphere c) neutral sphere 2) In Rutherford's Model which material foil is used? a) Copper b) Gold c) Zinc 3) The formula for maximum number of electron present in a shell a) 2n square b) 3n square c) 4nsquare

Līderu saraksts

Vizuālais stils

Iespējas

Pārslēgt veidni

Atjaunot automātiski saglabāto: ?