Step-by-step explanation:
2. The periodic table of elements is a tabular representation of chemical elements, organized on the basis of their atomic numbers
3. a. Mg
c.Fe
b.K
d. Cu
4. a.carbon
b.chlorine
c.aluminum
d.strontium
5. a. 5 group 18 element
b. 5 group 13 element
d. 5 group 17 element
c. 5 group 1 element
6. a. 3 group
b. 4 group
c. 5 group
d.4 group
7. I don't know
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