<span>Answer:
8 - 3.45 = 4.55
And (theoretically of course) if there were more problems like this, the answers would probably be something like this:
B) 29 - 25.30 = 3.70
C) 29 - 21.15 = 7.85
D) 1.effective nuclear charge</span>
Answer:
A region of high electron density between two positively charged nuclei, such that a net attractive force results.
Explanation:
Typically, the covalent bond is rationalized on the basis of the sharing of 2 electrons between two atomic nuclei. The modern covalent bond is considered to be a region of high electron density between 2 positively charged atomic nuclei, such that internuclear repulsion is minimized, and a net attractive force results.
Ionic bonds fall outside this umbrella.
Answer: Carbon-14 decays quickly leaving the amount too small to measure.
Explanation:
The answer is B.mass because like the periodic table it determines the elements by mass