71. Solving a chemistry problem
19. According to the distribution of valence electrons of the indicated atoms, make up their electronic configuration and determine the serial number and name of the element: 5s25p4; 3d54s1; 6s2 6p2; 3s2
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
No customer reviews yet.