This is telling you to do area and then add the two numbers you get
D) 47,000
0.60 (<em>x</em>+38,000)= 51,000
(0.60<em>x</em>)+22,800= 51,000
51,000-22,800= 28,200
28,200÷0.60= 47,000
0.06 (47,000+38,000)= 51,000
28,200+22,800= 51,000
Answer:
the atoms can have different numbers of valence electrons
2? because you add 6 and 3 together and get 9 then you subtract 11 by 9 and get 2
