A. K>Na>Li B. Be>Mg>Ca C. B>C>N D. Ge>Si>C
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A. 7,15 B. 6,12 C. 9,17 D. 3,12
A. Increase down the group B. Decrease down the group C. Remains unchanged D. The variations is not regular
A. O B. N C. C D. S
A. Li B. Al C. Si D. Mg
A. The mass of body B. The angular velocity of body C. The angular acceleration of body D. Temperature of a body
A. erg s B. dyn s C. dyn cm D. erg cm