Which element will have the same valence electron structure as nitrogen A. Aluminum (Al)
B. Antimony (Sb)
C. Lithium (Li)
D. Oxygen (O)

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n