The element that would have properties most like calcium (ca) is
Beryllium (Be)
Magnesium (Mg)
Strontium (Sr)
Barium (Ba)
This are elements in group two in the periodic table. They are also known as Alkaline earth metals. They have an oxidation state of 2+ since they have two valence electrons in their outermost energy levels.
Answer:
408g
Explanation:
Relative atomic mass of NO: 14+16 =30
16/30*100= 53.3%(percentage by mass of O in NO)
53.3/100*765= mass of O
=408g
I don’t know what the answer is just need points sorry
there's really no specific answer but mine would be...
1. how does that light show from earth?
2. will that light ever dim?
3. are some stars bright but just not bright enough that we can see?
