4*22 - 3*2 = 16 - 6 = 10
4d2+16 4(d2+4)
6b4 / 5c4d4 / 3ab2 / 20c3d Division is not associative and since there are no brackets (parentheses) the operations are evaluated from left to right. Thus 6b4 / 5c4d4 = 6/5*b4c-4d-4 6b4 / 5c4d4 / 3ab2 = 6/5*b4c-4d-4/ 3ab2 = 2/5*a-1b2c-4d-4 6b4 / 5c4d4 / 3ab2 / 20c3d = 2/5*a-1b2c-4d-4/ 20c3d = 1/50*a-1b2c-7d-5 or b2/(50ac7d5)
That's 4d2 .
1234 = 4d2
4d (d + 5)
(2d-7)2
Zirconium, Zr
Area of deck = (20+2d)x(40+2d)-(20x40) Area of deck = (20x40)+40d+80d+4d2 -(20x40) Area of deck = 120d+4d2
The noble gas configuration for zirconium (Zr - atomic weight 40) is based on krypton: [Kr] 4d2 5s2 The full electronic configuration is : 1s2 2s2 2p6 3s2 3p6 3d104s2 4p6 4d2 5s2
The element with the electron configuration 1s22s22p63s23p64s23d104p65s24d2 is Nickel (Ni), which has an atomic number of 28.
one equals