you wrong

u are wrong that the test have 11 question it only have 7 not 11 but 7

dose any one know the 7 question

I's 1 a 2 d 3 a

give answer now

u must be right if everyone is bbaca

slow, Valence electrons 1 quick check How many valence electrons does each atom of arsenic (As) have? Arsenic is element 33. It is in period 4 and family 15 (5A or the Nitrogen family) = 5 Two representative elements are in the same period of the periodic...