Answer:
10 meters per second
Explanation:
20 neutrons
neutrons = mass number - atomic number
mass number = 39, atomic number = 19
neutrons = 39 - 19 = 20
Decomposition!
D is the correct answer
1. 3x-3=18
Value of x=7
2. 4x-5=23
value of x=7
They dont have definite shape, high density and volume.
But they can be mixed together very easily
hope you got your answer
