in which arrangement of elements will reactivity generally become greater?a left to right b bottom to top c top to bottom d both a and c
Answer (2)
Your heart is a vital organ. It is a muscle that pumps blood to all parts of your body. The blood pumped by your heart provides your body with the oxygen and nutrients it needs to function. Your heart is about the size of a clenched fist, and weighs between 300 and 450 g.Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body. Blood also fights infections, and carries hormones around the body.Blood vessels carry blood from your heart to the rest of your body. They're essential for making sure your organs and tissues get the oxygen and nutrients they need to work. But blood vessels can develop problems, such as blockages or enlargement
The reactivity of elements generally increases from top to bottom within a group in the periodic table. This is because, as you move downward, atoms have more electron shells, which increases the distance between the nucleus and the valence electrons. This weaker attraction makes it easier for metals to lose electrons, increasing their reactivity. However, for nonmetals, reactivity increases from bottom to top because atoms with fewer electron shells have a stronger pull on electrons, making it easier to gain them. Since the question is asking about general reactivity, and metals dominate most of the periodic table, the correct answer is (c) top to bottom.
