Rawan

Find the magnitude of vector A represented by Ax=-8.90 cm , Ay=1.60 cm

A soild cube of aluminum (density2.70g/cm^3) has a volume of 0.200cm^3 . It is known that 27.0g of aluminum contains 6.02x10^23 atoms . How many aluminum atoms are contained in the cube ?

Electron configuration of element P is 1s2, 2s2, 2p6, 3s2,3p6,4s1 Electron configuration of element Q is 1s2,2s2,2p6,3s2,3p6,4s2,3d10,4p5

Thank you so much 😀

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