Chemistry
Chemistry, 18.10.2019 05:30, djwattam

Why is hydrogen placed with the elements in group 1a? ?

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Physics, 26.09.2019 13:30, isalih7256
Which group on the periodic table contains only metals? the left-hand side of the table begins with group 1 element. group 1 elements begin with hydrogen. group 2 elements begin with beryllium. group 3 through group 12 are in the center of the table. the top row of these element groups include the elements scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, cooper, and zinc. on the right side of the periodic table are found groups 13 through 18. group 13 begins with boron. group 14 beings with carbon. group 15 begins with nitrogen. group 16 beings with oxygen. group 17 begins with fluorine. group 18 begins with helium. along the bottom a. the second group b. the last group c. along the top d.
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