Answer:
my teacher would let u say the density to mass is the ratio but i think everyone's different
Magnesium :
<span>[Ne] 3s²</span>
Answer A
hope this helps!
Answer: Cardiovascular System
Explanation:
This involves your heart, blood, veins, and arteries
Answer:
X= Be
Y= B
Z=O
Explanation:
From the description of the compound XCl2, among the options listed only beryllium can form such compound with three lone pairs in the two chlorine atoms and no lone pair on the central atom X.
From the description of YCl3, only Boron among the options listed can form such a compound with no lone pair on the central atom and three lone pairs on each of the chlorine atoms.
From the description of ZCl2, only oxygen forms the compound OCl2 among the elements listed where oxygen possesses two lone pairs and each chlorine atom possesses three lone pairs each.
