They are examples of physical<span> contaminants .</span>
No of Neutrons =Mass No-No of protons
- Hence it has atomic no 38
The element is Stroncium(Sr)
Yes the kingdom is more specific
Statement 2 is correct.
solids moving into solution is a physical change as the core structure of the molecules remain the same. evaporation of water and crystallization of salt are both physical changes as well.
The water does not change it's H2O chemical makeup because salt was dissolved into it.
Solids are tightly compacted
Liquids are medium
And gases are very spaced and floating around
