Answers

2015-06-02T13:44:51+05:30
(a)Lithium(Li), Sodium(Na), Potassium(k)

(b)Magnecium(Mg), Calcium(Ca), Berium(Be)

(c)Neon(Ne), Argon(Ar), Xenon(Xe)

hoped helped u :))

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2015-06-02T13:59:28+05:30
A. sodium
b. calciumĀ 
c. argon
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