Nope, it's a physical change. When ice melts it changes into liquid water, it's still water. Changes in which no new substances are formed are physical changes, hence this is a physical change.
Answer:
1
Explanation:
outershell atoms of an element are also known as valency of that element
so the valency and number of elctron in the outershell of a sodium atom is +1.
hope this will help
mark me as brilliant
Having resources? i guess...
maybe it is critical thinking?
Answer: ok, its C
Explanation: I used D=26.4* 3 to calculat it