Answer:
density of a piece of metal = 7 gr/ml
Explanation:
See the file please
The answer should be 479 i could possibly be wrong but that’s what i got because one mole is 47.90 grams
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.
Answer:
B. Two electrons
Explanation:
Since the S orbital is closest to the nucleus and it only has one orbital, it can only hold 2 electrons
Answer:
C would be the most best choice for this question.
Thank you.
If you have any questions, feel free to leave a comment and I will get back to it as soon as I can.
-The Spectre
Explanation:
