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Biology, 05.05.2020 05:09 maryam4241

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Note the bold zigzag line" on the right-hand side of the periodic table on the last page. In general, metals (e. g. Mg.
AI, K, Na, Cu, Zn) are found to the left of this line, and nonmetals to the right (e. g. C, N, O, CI). A notable exception
is hydrogen, H. Although it's located far to the left, it is classified as a nonmetal. The vertical columns in the periodic
table are called Groups, while the horizontal rows are call periods.
Bas
34. Write the symbol for the element that is in...
a.) Group IA and period 2: ___ b.) Group 2A and period 3: c.) Group 7A and period 2:
35. In what group of the periodic table are the metals lithium (Li), sodium (Na) and potassium (K):
36. What is the charge of lithium and sodium ions?
37. Predict the charge of potassium ions. Explain your reasoning.
38. In what group of the periodic table are the nonmetals fluorine (F), Chlorine (CI) and bromine (Br):
39. What is the charge of fluoride ions?
40. Predict the charge of chloride and bromide ions. Explain your reasoning.

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