(Pay attention to the subject you're choosing, this is supposed to be in the Chemistry section, not here in the Mathematics)
On the periodic table, the Magnesium Mg is located in period 3, group 2. So it got 12 electrons.
So to become the cation Mg2+, the Magnesium has lost 2 electrons during it's formation.
So 12-2=10.
So there's 10 electrons in the Cation magnesium Mg2+
Hope this Helps! :)
Answer:
C) 1/2
Step-by-step explanation:
there are two more choices and Blues Brothers is only one of those
Answer:
(c) 65
Step-by-step explanation:
(f ⁰ g)(x) = 3(x² + 4) + 5
(f ⁰ g)(4) = 3(4² + 4) + 5 = 3*20 + 5 = 65
A distance-time graph tells us how far an object has moved with time. The steeper the graph, the faster the motion. A horizontal line means the object is not changing its position - it is not moving, it is at rest. A downward sloping line means the object is returning to the start.