2. The trends in periodic table in melting point for group 1 and group 2 as you move down to the group? decreases c. the same b. increases d. either A or B
3. In Density with regards to 4 and 7 period it from right to the middle. decreases c. the same increases d. either A or B
4.Which Family of elements, react with oxygen to form basic solution when dissolved in water? I. Group 1 II. Group 2 III. Group 13 IV. Group 14 2. Group 13 and Group 14 c. Group 14 and Group 1 b. Group 13 and Group 2 d. Group 1 and 2
5. What element can be added to oxygen to make it basic? a. Iron c. Silicon b. Copper d. Magnesium​