Answer: Option (D) is the correct answer.
Explanation:
Non-metals are electron deficient in nature so, in order to complete their octet they need to gain electrons from metals or electron rich atoms.
Whereas metals are electron rich in nature so, in order to gain stability metals lose their valence electrons.
For example, atomic number of potassium is 19 and its electronic distribution is 2, 8, 8, 1. Whereas atomic number of chlorine is 17 and its electronic distribution is 2, 8, 7.
Therefore, sodium in order to gain stability will lose its valence electron to chlorine atom. Hence, an ionic bond will be formed resulting in the formation of KCl.
Thus, we can conclude that non-metals seek to gain electrons to have full outermost shells, while metals seek to lose electrons to have full outermost shells.
2. The tendency of offspring to differ from parents is called inheritance
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<span>When Prophase is occur, during this stage, changes occur both in the cytoplasm and in the nucleus. Within the nucleus, the chromatin fibers become more tightly coiled and folded, forming discrete chromosomes that can be seen with the light microscope. The nucleoli disappear. Each duplicated chromosome appears as two sister chromatids joined together, with a narrow waist at the centromere.In the cytoplasm, the mitotic spindle begins to form as microtubules rapidly grow out from the centrosomes which begin to move away from each other.</span>
Answer:
The Brazilian independence movement was achieved with almost no resistance from Portugal as the Portuguese king, Dom Pedro I had been told by his father that if independence must come to Brazil he should let it. So in essence, it was the only Latin American nation to achieve independence without bloodshed or conflict.
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Explanation:
Pepsin functions best in acidic environments and is often found in an acidic environment, particularly those with a pH of 1.5 to 2".
"Trypsins have an optimal operating pH of about 8".
It seems that the highest level of activity for the two if they were in the same environment would have to be midway between their optimum range - about pH 5
