3. Complete the sentence given below by filling in the blanks with correct word
a. A non metal with electronic configuration 2, 8, 8 belongs to period _____ and
group _____.
b. Isotopes of carbon have the same _____, but different number of _____.
c. Mendeleeff’s Periodic law states the “The physical and chemical properties of the elements are periodic function of their _________ “
a. A non metal with electronic configuration 2, 8, 8 belongs to period _____ and
group _____.
b. Isotopes of carbon have the same _____, but different number of _____.
c. Mendeleeff’s Periodic law states the “The physical and chemical properties of the elements are periodic function of their _________ “
Answers & Comments
Answer:
a.Period3and
group 18
b. same Atomic no.
different Mass no.
c. Atomic weight
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