Velocity is explained as the *speed and *direction something might move. Speed means moving and Direction means a certain way (not stationary.)
Hope this helps!
Answer:
Universe.
Explanation:
Biosphere is just a planet. Solar system contains planets and star. Galaxy holds multiple solar systems only. Universe hold everything, biospheres, solar systems, and galaxies. I hope this helps :D
Explanation:
“The isomers butane and methyl propane have the same molecular formula and different properties”, this is because structural isomers usually have different properties to their parent.
Number of proton K=19
so, 42 - 19 =23
then the answer in 19 protons and 23 neutrons
